The document discusses equations of motion and provides supporting details. It begins by listing 5 equations that satisfy the conditions to be considered equations of motion. These are derived from the velocity-time graph and include displacement-independent, velocity-independent, time-independent, initial velocity-independent, and acceleration-independent equations. The document also notes that all problems can be solved using just 2 of these 5 equations and defends the claim that a fourth equation, S=vt-1/2at^2, was first derived by the author in 2001. It provides background on the author's efforts over many years to have this recognized.
The document discusses equations for calculating velocity, acceleration, displacement, and time for objects moving with constant velocity or uniform acceleration. It provides the key equations:
1) For constant velocity, average velocity (v) equals displacement (Δx) over time (Δt), and displacement equals velocity times time.
2) For uniform acceleration, final velocity (vf) equals initial velocity (v0) plus acceleration (a) times time (Δt), and displacement equals initial velocity times time plus one-half acceleration times time squared.
3) A single equation relates displacement, initial velocity, final velocity, and acceleration, which can be rearranged to solve for any of those variables.
This document provides an overview of kinematic equations and how to approach solving kinematics problems. It includes:
- A list of common kinematic equations and how they are used depending on whether an object starts from rest, has constant velocity, or constant acceleration.
- Guidance on identifying key variables like displacement, velocity, acceleration and determining the correct signs based on the problem context.
- Worked examples showing how to set up and solve kinematics problems step-by-step using the appropriate equations.
- Tips for dealing with problems that may require using multiple equations or are multi-stage problems where acceleration changes. The key is to solve for available variables and use those solutions to determine missing variables
This document discusses rectilinear motion and concepts related to position, velocity, speed, and acceleration for objects moving along a straight line. It defines velocity as the rate of change of position with respect to time and speed as the magnitude of velocity. Acceleration is defined as the rate of change of velocity with respect to time. Examples of position, velocity, speed, and acceleration graphs are shown for an object with the position function s(t) = t^3 - 6t^2. The document also analyzes position versus time graphs to determine characteristics of an object's motion at different points. Finally, it works through an example of analyzing the motion of a particle with position function s(t) = 2t^3 -
The document discusses particle kinematics and concepts such as displacement, velocity, acceleration, and their relationships for rectilinear and curvilinear motion. Key concepts covered include definitions of displacement, average and instantaneous velocity, acceleration, graphical representations of position, velocity, and acceleration over time, and analytical methods for solving kinematic equations involving constant or variable acceleration. Several sample problems are provided to illustrate applying these kinematic concepts and relationships to solve for variables like time, velocity, acceleration, and displacement given relevant conditions.
This PPT covers linear motion of an object in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
Position, time, velocity, and acceleration are key concepts in kinematics and are measured in meters, seconds, meters/second, and meters/second squared, respectively. The general kinematic equations relate the initial and final velocities, acceleration, and time to calculate distance traveled. Gravity causes constant downward acceleration of 9.8 m/s2, so these equations can determine the velocity or distance of a falling object over time from its initial position or velocity. It is important to master the kinematic equations in both directions to solve for unknown values.
The document discusses three equations of motion:
1) v=u + at, which gives the final velocity (v) of an object with initial velocity (u) under uniform acceleration (a) over time (t).
2) s=ut + 1/2at^2, which gives the distance (s) traveled by an object with initial velocity (u) and acceleration (a) over time (t).
3) v=u+2as, which can be obtained by eliminating time (t) from the first two equations and gives the final velocity (v) of an object that travels a distance (s) with initial velocity (u) and acceleration (a).
An object experiencing the acceleration of gravity is described. The acceleration of gravity on Earth is approximately 9.8 m/s2 downward. Equations of motion are provided for falling bodies, including simplified equations that assume the object starts from rest. Examples are worked through comparing the traditional method of using negative signs for downward motion to an alternative method where downward is considered positive to simplify the signs.
The document discusses equations for calculating velocity, acceleration, displacement, and time for objects moving with constant velocity or uniform acceleration. It provides the key equations:
1) For constant velocity, average velocity (v) equals displacement (Δx) over time (Δt), and displacement equals velocity times time.
2) For uniform acceleration, final velocity (vf) equals initial velocity (v0) plus acceleration (a) times time (Δt), and displacement equals initial velocity times time plus one-half acceleration times time squared.
3) A single equation relates displacement, initial velocity, final velocity, and acceleration, which can be rearranged to solve for any of those variables.
This document provides an overview of kinematic equations and how to approach solving kinematics problems. It includes:
- A list of common kinematic equations and how they are used depending on whether an object starts from rest, has constant velocity, or constant acceleration.
- Guidance on identifying key variables like displacement, velocity, acceleration and determining the correct signs based on the problem context.
- Worked examples showing how to set up and solve kinematics problems step-by-step using the appropriate equations.
- Tips for dealing with problems that may require using multiple equations or are multi-stage problems where acceleration changes. The key is to solve for available variables and use those solutions to determine missing variables
This document discusses rectilinear motion and concepts related to position, velocity, speed, and acceleration for objects moving along a straight line. It defines velocity as the rate of change of position with respect to time and speed as the magnitude of velocity. Acceleration is defined as the rate of change of velocity with respect to time. Examples of position, velocity, speed, and acceleration graphs are shown for an object with the position function s(t) = t^3 - 6t^2. The document also analyzes position versus time graphs to determine characteristics of an object's motion at different points. Finally, it works through an example of analyzing the motion of a particle with position function s(t) = 2t^3 -
The document discusses particle kinematics and concepts such as displacement, velocity, acceleration, and their relationships for rectilinear and curvilinear motion. Key concepts covered include definitions of displacement, average and instantaneous velocity, acceleration, graphical representations of position, velocity, and acceleration over time, and analytical methods for solving kinematic equations involving constant or variable acceleration. Several sample problems are provided to illustrate applying these kinematic concepts and relationships to solve for variables like time, velocity, acceleration, and displacement given relevant conditions.
This PPT covers linear motion of an object in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
Position, time, velocity, and acceleration are key concepts in kinematics and are measured in meters, seconds, meters/second, and meters/second squared, respectively. The general kinematic equations relate the initial and final velocities, acceleration, and time to calculate distance traveled. Gravity causes constant downward acceleration of 9.8 m/s2, so these equations can determine the velocity or distance of a falling object over time from its initial position or velocity. It is important to master the kinematic equations in both directions to solve for unknown values.
The document discusses three equations of motion:
1) v=u + at, which gives the final velocity (v) of an object with initial velocity (u) under uniform acceleration (a) over time (t).
2) s=ut + 1/2at^2, which gives the distance (s) traveled by an object with initial velocity (u) and acceleration (a) over time (t).
3) v=u+2as, which can be obtained by eliminating time (t) from the first two equations and gives the final velocity (v) of an object that travels a distance (s) with initial velocity (u) and acceleration (a).
An object experiencing the acceleration of gravity is described. The acceleration of gravity on Earth is approximately 9.8 m/s2 downward. Equations of motion are provided for falling bodies, including simplified equations that assume the object starts from rest. Examples are worked through comparing the traditional method of using negative signs for downward motion to an alternative method where downward is considered positive to simplify the signs.
Chapter 3 discusses vectors and projectile motion. Vectors have both magnitude and direction, while scalars only have magnitude. Vector addition can be done graphically by placing the tail of one vector at the head of another, or by resolving vectors into perpendicular components and adding them. Projectile motion involves constant horizontal velocity and vertically accelerated motion due to gravity, allowing the horizontal and vertical motions to be analyzed separately. Key equations relate the initial velocity, angle, range, maximum height, time of flight, and landing position.
This document discusses kinematics, which is the geometry of motion without considering forces. It defines key concepts like displacement, velocity, acceleration, and their relationships. It presents four kinematic equations and provides examples of using these equations and graphs of position-time and velocity-time to solve kinematics problems for objects undergoing uniform and non-uniform acceleration.
This document provides an introduction to kinematics, the branch of physics that deals with the motion of objects. It explains key concepts like coordinate systems, equations of motion, and how to use the kinematics equations to solve problems related to projectile motion. Examples are worked through, such as calculating the maximum height and velocity of a ball thrown upward. Practice problems are also provided. The overall purpose is to teach readers the basics of kinematics and show how to apply the equations of motion.
The document discusses three equations of motion:
1) The first equation is v=u + at, which gives the velocity acquired by an object with initial velocity u that experiences a uniform acceleration a over time t.
2) The second equation is s=ut + 1/2at^2, which gives the distance traveled by an object with initial velocity u and uniform acceleration a over time t.
3) The third equation is v=u + 2as, which can be derived by eliminating time t from the first two equations and gives the final velocity of an object that travels a distance s with initial velocity u and uniform acceleration a.
Chapter 2 introduces the concepts of kinematics including reference frames, displacement, velocity, acceleration, and motion with constant acceleration. Equations are derived that relate displacement, velocity, acceleration, and time for objects undergoing constant acceleration. Near the Earth's surface, the acceleration due to gravity is approximately 9.80 m/s2, so these equations can be applied to analyze falling or projected objects using this value of acceleration.
Kinematics of a Particle document discusses:
1) Kinematics involves describing motion without considering forces, studying how position, velocity, and acceleration change over time for a particle.
2) Rectilinear motion involves a particle moving along a straight line, where position (x) is defined as the distance from a fixed origin, velocity (v) is the rate of change of position over time, and acceleration (a) is the rate of change of velocity over time.
3) Examples are provided to demonstrate solving kinematics problems using differentiation, integration, and relationships between position, velocity, acceleration graphs. Problems involve determining velocity, acceleration, distance or displacement given various relationships between these quantities.
Learn Online Courses of Subject Engineering Mechanics of First Year Engineering. Clear the Concepts of Engineering Mechanics Through Video Lectures and PDF Notes. Visit us: https://ekeeda.com/streamdetails/subject/Engineering-Mechanics
This document provides an introduction to linear kinematics. It discusses key linear kinematic variables like distance, displacement, speed, velocity, and acceleration. It defines these variables and the units used to measure them. It also describes the difference between scalar and vector quantities as they relate to motion. Examples of single-point and multi-segment models for describing motion are provided. Equations for calculating speed, velocity, and acceleration from changes in distance, displacement, and time are shown. Projectile motion is also summarized, including the independent vertical and horizontal components of projectile motion.
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This chapter discusses kinematics of linear motion, including:
1) It defines kinematics as the study of motion without considering forces, and describes linear and projectile motion.
2) It introduces key concepts such as displacement, speed, velocity, acceleration and their relationships. Equations for these quantities under constant and uniformly accelerated motion are provided.
3) It describes motion under constant acceleration due to gravity, known as freely falling bodies, and provides the relevant equations.
Physics 504 Chapter 9 Uniform Rectilinear MotionNeil MacIntosh
This document discusses uniform rectilinear motion. It defines different types of motion including rectilinear, curvilinear, and random motion. Distance is defined as a scalar quantity representing how far an object has moved, while displacement is a vector quantity that includes both distance and direction. Uniform motion refers to motion at a constant speed in a single direction. Graphs of distance-time and velocity-time relationships are used to analyze motion. The average velocity and speed can be calculated from these graphs by determining slope.
The document discusses uniformly accelerated motion, which is motion where the tangential acceleration is constant. It provides equations that relate the speed, distance, and acceleration of an object undergoing uniformly accelerated motion. Specifically, the speed and distance after a period of time can be determined based on the initial speed, acceleration, and time. The document also discusses applying these concepts to rigid bodies undergoing translational or rotational motion as well as the specific formulas for average acceleration and displacement.
This document discusses the kinematics of particles in rectilinear and curvilinear motion. It defines key concepts like position, displacement, velocity, and acceleration for both continuous and erratic rectilinear motion. Examples are provided to demonstrate how to construct velocity-time and acceleration-time graphs from a given position-time graph, and vice versa. The chapter then discusses general curvilinear motion, defining position, displacement, velocity, and acceleration using vector analysis since the curved path is three-dimensional. Fundamental problems and practice problems are also included.
Curvilinear motion occurs when a particle moves along a curved path.
Since this path is often described in three dimensions, vector analysis will
be used to formulate the particle's position, velocity, and acceleration
This document discusses key terms and equations related to rectilinear motion. Rectilinear motion refers to motion along a straight line. Kinematics deals with the motion of bodies without considering forces. Important concepts discussed include displacement, average and instantaneous velocity, acceleration, distance traveled, and equations of motion. Graphical representations of motion using velocity-time graphs are also presented for different scenarios including uniform velocity, variable velocity from rest to a final velocity, and variable velocity between two points.
This document discusses kinematics of particles, which is the geometry of motion without considering causes of motion. It covers topics like rectilinear and curvilinear motion, determining motion given acceleration functions, uniform and accelerated rectilinear motion, and relative motion of particles. Sample problems are provided to demonstrate solving for position, velocity, acceleration and time using the kinematic equations for different types of motion like uniformly accelerated projectile motion and objects in relative motion.
This document provides an overview of graphing motion in one dimension. It discusses position versus time graphs, velocity versus time graphs, and acceleration versus time graphs. Key points include:
- The slope of a position-time graph represents velocity, and the slope of a velocity-time graph represents acceleration.
- Straight lines on position-time graphs indicate uniform motion with constant velocity.
- The area under a velocity-time graph represents displacement.
- Kinematic equations allow calculations of variables like position, velocity, and acceleration given information about an object's motion under constant acceleration.
This document discusses key concepts in kinematics including:
- Kinematics is the study of motion without considering causes. It focuses on rectilinear or straight-line motion.
- Displacement is a vector quantity that describes the shortest distance between initial and final positions, while distance is a scalar quantity describing the actual path traveled.
- Uniform motion occurs when equal displacements happen in equal time intervals, resulting in a straight line on a position-time graph. Non-uniform motion has acceleration.
This document discusses vectors and their properties. It provides examples of vector addition and multiplication. Some key points:
- Vectors have both magnitude and direction, while scalars only have magnitude. Vector addition follows the triangle and parallelogram laws.
- There are two types of vector multiplication: the dot product, which results in a scalar, and the cross product, which results in another vector.
- The dot product of two vectors is equal to their magnitudes multiplied by the cosine of the angle between them. It is used to calculate quantities like work and power.
- Vectors can be resolved into rectangular components using a set of base vectors like the i, j, k unit vectors. The magnitude
1) The document describes curvilinear motion and how to analyze the motion of objects moving along curved paths using rectangular components.
2) It provides examples of how to determine the velocity and acceleration of planes in formation and a roller coaster car moving along a fixed helical path using their x, y, and z coordinates.
3) The document also gives an example problem solving for the collision point and speeds of two particles moving along curved paths given their position vectors as functions of time.
This document discusses key kinematic concepts including displacement, speed, velocity, acceleration, average velocity, instantaneous velocity, and uniformly accelerated motion. It defines these terms and discusses how to calculate them using equations of motion. Graphical representations of motion like distance-time graphs and velocity-time graphs are also covered. The effects of air resistance and gravity are summarized.
This document provides an overview of basic kinematic concepts for analyzing human movement. It discusses defining reference systems and variables for describing the motion of body segments and joints. Key kinematic variables covered include time, position, displacement, velocity, and acceleration. Guidelines are provided for precisely describing the temporal and spatial characteristics of motion, such as identifying the system of interest, type of motion, reference system, and using appropriate terminology like time, position, and displacement. Vector algebra concepts are listed as the next topic to be covered.
Chapter 3 discusses vectors and projectile motion. Vectors have both magnitude and direction, while scalars only have magnitude. Vector addition can be done graphically by placing the tail of one vector at the head of another, or by resolving vectors into perpendicular components and adding them. Projectile motion involves constant horizontal velocity and vertically accelerated motion due to gravity, allowing the horizontal and vertical motions to be analyzed separately. Key equations relate the initial velocity, angle, range, maximum height, time of flight, and landing position.
This document discusses kinematics, which is the geometry of motion without considering forces. It defines key concepts like displacement, velocity, acceleration, and their relationships. It presents four kinematic equations and provides examples of using these equations and graphs of position-time and velocity-time to solve kinematics problems for objects undergoing uniform and non-uniform acceleration.
This document provides an introduction to kinematics, the branch of physics that deals with the motion of objects. It explains key concepts like coordinate systems, equations of motion, and how to use the kinematics equations to solve problems related to projectile motion. Examples are worked through, such as calculating the maximum height and velocity of a ball thrown upward. Practice problems are also provided. The overall purpose is to teach readers the basics of kinematics and show how to apply the equations of motion.
The document discusses three equations of motion:
1) The first equation is v=u + at, which gives the velocity acquired by an object with initial velocity u that experiences a uniform acceleration a over time t.
2) The second equation is s=ut + 1/2at^2, which gives the distance traveled by an object with initial velocity u and uniform acceleration a over time t.
3) The third equation is v=u + 2as, which can be derived by eliminating time t from the first two equations and gives the final velocity of an object that travels a distance s with initial velocity u and uniform acceleration a.
Chapter 2 introduces the concepts of kinematics including reference frames, displacement, velocity, acceleration, and motion with constant acceleration. Equations are derived that relate displacement, velocity, acceleration, and time for objects undergoing constant acceleration. Near the Earth's surface, the acceleration due to gravity is approximately 9.80 m/s2, so these equations can be applied to analyze falling or projected objects using this value of acceleration.
Kinematics of a Particle document discusses:
1) Kinematics involves describing motion without considering forces, studying how position, velocity, and acceleration change over time for a particle.
2) Rectilinear motion involves a particle moving along a straight line, where position (x) is defined as the distance from a fixed origin, velocity (v) is the rate of change of position over time, and acceleration (a) is the rate of change of velocity over time.
3) Examples are provided to demonstrate solving kinematics problems using differentiation, integration, and relationships between position, velocity, acceleration graphs. Problems involve determining velocity, acceleration, distance or displacement given various relationships between these quantities.
Learn Online Courses of Subject Engineering Mechanics of First Year Engineering. Clear the Concepts of Engineering Mechanics Through Video Lectures and PDF Notes. Visit us: https://ekeeda.com/streamdetails/subject/Engineering-Mechanics
This document provides an introduction to linear kinematics. It discusses key linear kinematic variables like distance, displacement, speed, velocity, and acceleration. It defines these variables and the units used to measure them. It also describes the difference between scalar and vector quantities as they relate to motion. Examples of single-point and multi-segment models for describing motion are provided. Equations for calculating speed, velocity, and acceleration from changes in distance, displacement, and time are shown. Projectile motion is also summarized, including the independent vertical and horizontal components of projectile motion.
Ekeeda Provides Online Civil Engineering Degree Subjects Courses, Video Lectures for All Engineering Universities. Video Tutorials Covers Subjects of Mechanical Engineering Degree.
This chapter discusses kinematics of linear motion, including:
1) It defines kinematics as the study of motion without considering forces, and describes linear and projectile motion.
2) It introduces key concepts such as displacement, speed, velocity, acceleration and their relationships. Equations for these quantities under constant and uniformly accelerated motion are provided.
3) It describes motion under constant acceleration due to gravity, known as freely falling bodies, and provides the relevant equations.
Physics 504 Chapter 9 Uniform Rectilinear MotionNeil MacIntosh
This document discusses uniform rectilinear motion. It defines different types of motion including rectilinear, curvilinear, and random motion. Distance is defined as a scalar quantity representing how far an object has moved, while displacement is a vector quantity that includes both distance and direction. Uniform motion refers to motion at a constant speed in a single direction. Graphs of distance-time and velocity-time relationships are used to analyze motion. The average velocity and speed can be calculated from these graphs by determining slope.
The document discusses uniformly accelerated motion, which is motion where the tangential acceleration is constant. It provides equations that relate the speed, distance, and acceleration of an object undergoing uniformly accelerated motion. Specifically, the speed and distance after a period of time can be determined based on the initial speed, acceleration, and time. The document also discusses applying these concepts to rigid bodies undergoing translational or rotational motion as well as the specific formulas for average acceleration and displacement.
This document discusses the kinematics of particles in rectilinear and curvilinear motion. It defines key concepts like position, displacement, velocity, and acceleration for both continuous and erratic rectilinear motion. Examples are provided to demonstrate how to construct velocity-time and acceleration-time graphs from a given position-time graph, and vice versa. The chapter then discusses general curvilinear motion, defining position, displacement, velocity, and acceleration using vector analysis since the curved path is three-dimensional. Fundamental problems and practice problems are also included.
Curvilinear motion occurs when a particle moves along a curved path.
Since this path is often described in three dimensions, vector analysis will
be used to formulate the particle's position, velocity, and acceleration
This document discusses key terms and equations related to rectilinear motion. Rectilinear motion refers to motion along a straight line. Kinematics deals with the motion of bodies without considering forces. Important concepts discussed include displacement, average and instantaneous velocity, acceleration, distance traveled, and equations of motion. Graphical representations of motion using velocity-time graphs are also presented for different scenarios including uniform velocity, variable velocity from rest to a final velocity, and variable velocity between two points.
This document discusses kinematics of particles, which is the geometry of motion without considering causes of motion. It covers topics like rectilinear and curvilinear motion, determining motion given acceleration functions, uniform and accelerated rectilinear motion, and relative motion of particles. Sample problems are provided to demonstrate solving for position, velocity, acceleration and time using the kinematic equations for different types of motion like uniformly accelerated projectile motion and objects in relative motion.
This document provides an overview of graphing motion in one dimension. It discusses position versus time graphs, velocity versus time graphs, and acceleration versus time graphs. Key points include:
- The slope of a position-time graph represents velocity, and the slope of a velocity-time graph represents acceleration.
- Straight lines on position-time graphs indicate uniform motion with constant velocity.
- The area under a velocity-time graph represents displacement.
- Kinematic equations allow calculations of variables like position, velocity, and acceleration given information about an object's motion under constant acceleration.
This document discusses key concepts in kinematics including:
- Kinematics is the study of motion without considering causes. It focuses on rectilinear or straight-line motion.
- Displacement is a vector quantity that describes the shortest distance between initial and final positions, while distance is a scalar quantity describing the actual path traveled.
- Uniform motion occurs when equal displacements happen in equal time intervals, resulting in a straight line on a position-time graph. Non-uniform motion has acceleration.
This document discusses vectors and their properties. It provides examples of vector addition and multiplication. Some key points:
- Vectors have both magnitude and direction, while scalars only have magnitude. Vector addition follows the triangle and parallelogram laws.
- There are two types of vector multiplication: the dot product, which results in a scalar, and the cross product, which results in another vector.
- The dot product of two vectors is equal to their magnitudes multiplied by the cosine of the angle between them. It is used to calculate quantities like work and power.
- Vectors can be resolved into rectangular components using a set of base vectors like the i, j, k unit vectors. The magnitude
1) The document describes curvilinear motion and how to analyze the motion of objects moving along curved paths using rectangular components.
2) It provides examples of how to determine the velocity and acceleration of planes in formation and a roller coaster car moving along a fixed helical path using their x, y, and z coordinates.
3) The document also gives an example problem solving for the collision point and speeds of two particles moving along curved paths given their position vectors as functions of time.
This document discusses key kinematic concepts including displacement, speed, velocity, acceleration, average velocity, instantaneous velocity, and uniformly accelerated motion. It defines these terms and discusses how to calculate them using equations of motion. Graphical representations of motion like distance-time graphs and velocity-time graphs are also covered. The effects of air resistance and gravity are summarized.
This document provides an overview of basic kinematic concepts for analyzing human movement. It discusses defining reference systems and variables for describing the motion of body segments and joints. Key kinematic variables covered include time, position, displacement, velocity, and acceleration. Guidelines are provided for precisely describing the temporal and spatial characteristics of motion, such as identifying the system of interest, type of motion, reference system, and using appropriate terminology like time, position, and displacement. Vector algebra concepts are listed as the next topic to be covered.
Motion refers to a change in an object's position over time and can be described by factors like displacement, velocity, and acceleration. There are different types of motion including uniform, non-uniform, and rest. Uniform motion means traveling equal distances in equal time intervals while non-uniform motion means traveling unequal distances in equal time or vice versa. Speed, velocity, and acceleration are also defined, with acceleration being the rate of change of an object's velocity over time. Common types of acceleration include uniform and non-uniform. Equations of motion can be used to analyze an object's motion if variables like displacement, velocity, acceleration, and time are known.
Jesus Os Lugares Onde Ocorreram Os Milagres Hino 357Nilson Junior
O documento lista vários milagres realizados por Jesus em diferentes locais na Judéia e na Galiléia, incluindo transformar água em vinho em Caná da Galiléia, curar o filho de um oficial em Cafarnaum, alimentar milhares de pessoas com poucos pães e peixes, andar sobre as águas, curar cegos, surdos, paralíticos e ressuscitar Lázaro.
JEE Physics/ Lakshmikanta Satapathy/ Kinematics QA part 11/ Question on relative velocity involving a man and an escalator when either or both are in motion solved with the relates concepts
Newton's first law of motion, also known as the law of inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Galileo was the first to discover and describe inertia, observing that objects resist changes to their motion due to their mass. Newton later formalized inertia as his first law of motion.
The document discusses kinematic equations, which describe motion without considering its causes. It presents four equations that can be used to determine unknown values like velocity, acceleration, displacement, and time, given other known values. These equations can model constant velocity or constant acceleration motion. Examples show how to apply the equations to calculate final velocity, distance traveled, initial velocity, and other values in scenarios involving cars, kicked balls, sledding, and road rage.
This document discusses Newton's laws of motion and related concepts in physics. It defines force and describes how force can affect motion by changing an object's speed, direction, or shape. It then explains Newton's three laws: (1) an object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force, (2) the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, and (3) for every action, there is an equal and opposite reaction. It also discusses concepts like inertia, momentum, and conservation of momentum.
This document discusses junction transistors and semiconductor devices. It describes the basic structure and operation of NPN and PNP transistors, including how current flows when the emitter-base and collector-base junctions are forward and reverse biased. It also explains the characteristics of transistors in common base and common emitter configurations, including the phase relationships between input and output signals. Finally, it defines various gains such as current gain, voltage gain, and transconductance.
1. The document discusses digital circuits and logic gates. It defines analog and digital signals and introduces the binary number system.
2. Boolean algebra and logic operations such as OR, AND, and NOT are described. The document provides truth tables to define the output of logic gates for all possible input combinations.
3. Common logic gates such as OR, AND, NOT, NOR, and NAND are defined. Their corresponding truth tables and circuit diagrams are given to illustrate how each gate implements Boolean logic operations. The gates can be combined to form other gates like XOR.
The Canterville Ghost, Class 11 English novel - Theme, Chapter wise summary ...Kendriya Vidyalaya
This ppt aims to describe all the characters of class 11 novel 'The Canterville Ghost. There is both brief and detailed character sketch of all characters of class 11 long reading text(novel). This ppt provide the inf. about theme, characters & summary of 'The Cantrville Ghost'.
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This document provides an overview of PN junction diodes and their applications:
1) It describes how a PN junction diode is formed by joining a P-type and N-type semiconductor, creating a depletion region and potential barrier.
2) Under forward bias, the potential barrier decreases allowing current to flow. Under reverse bias, the barrier increases inhibiting current flow.
3) Diode characteristics show the nonlinear I-V relationship. Diodes can be used as half-wave or full-wave rectifiers to convert AC to DC.
4) Zener diodes operate under reverse bias near the breakdown voltage and are used for voltage regulation.
This document provides summaries of key formulas and concepts in ray optics, including:
1) Snell's law describes the relationship between the refractive indices of two media and the angle of incidence and refraction. Total internal reflection occurs when light travels from an optically dense medium to a less dense one at an angle greater than the critical angle.
2) Formulas are provided for mirror and lens formulas, linear magnification, magnification of microscopes and telescopes, and resolving power.
3) Refraction through a prism depends on the angle of incidence and angle of minimum deviation. Dispersion and angular dispersion describe how prisms separate white light into constituent colors.
1. Rutherford's alpha scattering experiment provided evidence for the nuclear model of the atom, showing that the mass and positive charge of an atom are concentrated in a small, dense nucleus.
2. The binding energy curve shows that binding energy per nucleon initially rises with atomic mass number before peaking at iron-56 and then decreasing, indicating relative nuclear stability.
3. Radioactive decay follows first-order kinetics and the rate of decay is characterized by the disintegration constant λ, with the half-life period giving the time for half the radioactive nuclei to decay.
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1. Frictional electricity is produced by rubbing two materials together, causing electrons to transfer from one material to the other. For example, rubbing glass with silk causes electrons to transfer from the glass to the silk, leaving the glass positively charged and the silk negatively charged.
2. Coulomb's law states that the electrostatic force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
3. Charge can exist as discrete quantities called electrons. Charge is quantized and can be expressed as integer multiples of the fundamental unit of charge called the electron charge.
4. Continuous charge distributions can be described by their linear charge density, surface charge
1. This document covers key concepts in ray optics including refraction through a prism, dispersion, compound microscopes, astronomical telescopes, and resolving power. It defines terms like refractive index, angle of deviation, angular dispersion, and dispersive power.
2. Refraction through a prism is analyzed using Snell's law. The angle of deviation depends on the angle of incidence and reaches a minimum value. Prism dispersion is explained by wavelengths refracting at different angles according to their frequency.
3. Compound microscopes use two converging lenses, an objective and eyepiece, to magnify images. Angular magnification is calculated using lens equations and depends on focal lengths and distances. Telescopes
This document outlines the terms and conditions for a rental agreement between John Doe and ABC Properties for the lease of an apartment located at 123 Main St from January 1, 2023 through December 31, 2023. The tenant agrees to pay $1,000 per month in rent due on the 1st of each month, to keep the unit in good condition, and not cause issues for other tenants. The landlord agrees to make all necessary repairs and keep the property up to housing code standards.
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PHYSICS KSSM FORM 4 (2.1 Linear Motions)jelika8807
The document discusses linear and non-linear motion, and defines key terms like distance, displacement, speed, velocity, acceleration, and deceleration. It provides examples of using a ticker tape to analyze motion graphs and determine displacement, average velocity, and acceleration. Equations of motion are presented, along with examples of using the equations to solve problems involving initial velocity, final velocity, displacement, time, and acceleration.
Vectors are directed line segments used to represent quantities with both magnitude and direction. They have an initial point and terminal point. The document provides examples of calculating the component form and magnitude of vectors, as well as the standard operations of vector addition and scalar multiplication. It also discusses the dot product and using it to determine the angle between two vectors.
FORCE AND MOTION 1 Teks Book FROM 5, .pdf7c4hx7n5n9
This document discusses linear motion and how to analyze it. It defines key linear motion concepts like distance, displacement, speed, velocity, and acceleration. It provides examples of how to calculate these values using information like an object's displacement over time. The document also describes how ticker tape can be used in experiments to record an object's displacement and time, in order to determine its velocity and acceleration. Activities are suggested to have students apply these concepts, such as using a ticker tape setup to analyze the motion of a trolley.
The document discusses kinematics of particles, including rectilinear and curvilinear motion. It defines key concepts like displacement, velocity, and acceleration. It presents equations for calculating these values for rectilinear motion under different conditions of acceleration, such as constant acceleration, acceleration as a function of time, velocity, or displacement. Graphical interpretations are also described. An example problem is worked through to demonstrate finding velocity, acceleration, and displacement at different times for a particle moving in a straight line.
This document provides an overview of A-Level Physics content on kinematics and SUVAT equations. It aims to teach students how to use equations for uniformly accelerated motion in one dimension, as well as how to separate vertical and horizontal motion of projectiles. The lesson covers definitions of kinematics, derivation of basic SUVAT equations, worked examples, and practice questions to solidify understanding of calculating velocity, displacement, time and acceleration using the SUVAT method.
The document summarizes key concepts from Chapter 2 of a Physics textbook on kinematics of linear motion. It discusses the following in 3 sentences:
Linear motion can be one-dimensional or two-dimensional projectile motion. Equations of motion include relationships between displacement, velocity, acceleration, and time. Uniformly accelerated motion follows equations that relate the initial and final velocity, acceleration, and time to determine displacement and distance traveled.
motion lesson into simple teIn physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time. ... As there is no absolute frame of reference, absolute motion cannot be determined.rms and equation sums
This document provides information about a dynamics course taught by Professor Nikolai V. Priezjev. The course will cover kinematics and dynamics using the textbook "Vector Mechanics for Engineers: Dynamics" by Beer, Johnston, Mazurek and Cornwell. Kinematics deals with the geometric aspects of motion without forces or moments. The course objectives are to derive relations between position, velocity and acceleration for various motion types using concepts like the s-t graph and rectangular components.
1) The Michelson-Morley experiment aimed to detect the existence of the luminiferous ether by measuring differences in the speed of light due to Earth's hypothesized motion through the ether.
2) The experiment found no differences and detected no motion of Earth relative to the ether. This contradicted the prevailing theories and had profound implications for the development of special relativity.
3) The null result of the experiment challenged classical concepts and led to the development of relativistic physics without the need for an ether.
This document discusses key concepts related to motion including:
1) Distance moved is the actual length travelled while displacement is the shortest distance between initial and final positions.
2) Uniform motion means equal distances in equal times while non-uniform motion means unequal distances in unequal times.
3) Speed, average speed, velocity, and average velocity are defined and the differences between scalar and vector quantities are explained.
4) Acceleration is the rate of change of velocity and equations of motion relate displacement, time, initial velocity, final velocity, and acceleration.
5) Distance-time and velocity-time graphs can represent motion and be used to calculate speed, velocity, acceleration, and distance travelled.
This document contains 12 slides related to solving projectile motion problems using vectors. It begins with two example problems involving resolving forces into components. The objectives are then stated as understanding how to resolve projectile problems by breaking vectors into horizontal and vertical components. Several example problems are worked through demonstrating this process. Key equations for projectile motion are also reviewed. The final slides provide additional practice problems for students to solve, applying the techniques demonstrated in the document.
1. The document describes motion and kinematic equations derived from velocity-time and distance-time graphs. It defines concepts like displacement, distance, speed, velocity, uniform and non-uniform motion, and acceleration.
2. Equations of motion like v=u+at, s=ut+1/2at^2, and 2as=v^2-u^2 are derived graphically from velocity-time graphs for bodies undergoing uniform acceleration.
3. Circular motion is defined as motion along a circular path. Uniform circular motion occurs when an object moves at a constant speed but continuously changes direction, resulting in acceleration.
1) A policeman used a video camera and radar to claim that a car accelerated from 0 to 90 km/h over 150m in 12 seconds. Using the equations of motion, the calculated acceleration of 2.08 m/s^2 supports that this is possible.
2) The document discusses equations of motion, including definitions of acceleration, velocity, distance, and derivations of the three kinematic equations relating these variables.
3) Examples are given for using the kinematic equations to calculate final velocity, distance travelled, or initial/final velocity given two of acceleration, time, or distance.
The document discusses analyzing motion graphs through displacement-time graphs and velocity-time graphs. It provides examples of how to interpret these graphs:
- Displacement-time graphs can be used to determine velocity from the gradient and qualitative motion details. Velocity-time graphs allow determining acceleration from the gradient and displacement from the area under the graph.
- Examples show calculating displacement, velocity, acceleration and average values from given motion graphs through analyzing gradients and areas.
- Motion graphs can qualitatively and quantitatively describe an object's motion by showing properties like constant/changing velocity and acceleration, as well as calculating kinematic values over different time periods.
The Michelson-Morley experiment aimed to detect the existence of the luminiferous ether by measuring differences in the speed of light moving in different directions through the ether. However, the experiment found no differences, indicating that either the ether does not exist or the Earth is stationary within the ether. This null result was unexpected and challenged theories of mechanics at the time. The experiment helped establish the theory of relativity by showing that the speed of light is constant regardless of the motion of its source. It marked the beginning of major changes in how space and time were conceived.
1. The document describes motion and related concepts like displacement, distance, speed, velocity, uniform and non-uniform motion, acceleration, and circular motion.
2. Key equations of motion are derived from velocity-time graphs, including v = u + at, s = ut + 1/2at^2, and 2as = v^2 - u^2.
3. Circular motion is defined as the motion of a body in a circular path, with uniform circular motion having a body move with uniform speed around the path.
The document provides information and instructions for an honors physics class, including:
- Questions about negative acceleration and velocity graphs from homework
- Announcements about assignments, quizzes, and help available
- Practice problems involving creating graphs of velocity vs. time to solve kinematic equations
- Examples of completed graphs analyzing motion with changing velocity over time
Similar to Whole Procedure of Equations of motion. (20)
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...Sérgio Sacani
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
The technology uses reclaimed CO₂ as the dyeing medium in a closed loop process. When pressurized, CO₂ becomes supercritical (SC-CO₂). In this state CO₂ has a very high solvent power, allowing the dye to dissolve easily.
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...Travis Hills MN
By harnessing the power of High Flux Vacuum Membrane Distillation, Travis Hills from MN envisions a future where clean and safe drinking water is accessible to all, regardless of geographical location or economic status.
Immersive Learning That Works: Research Grounding and Paths ForwardLeonel Morgado
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
ESR spectroscopy in liquid food and beverages.pptxPRIYANKA PATEL
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdfSelcen Ozturkcan
Ozturkcan, S., Berndt, A., & Angelakis, A. (2024). Mending clothing to support sustainable fashion. Presented at the 31st Annual Conference by the Consortium for International Marketing Research (CIMaR), 10-13 Jun 2024, University of Gävle, Sweden.
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...Leonel Morgado
Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...Advanced-Concepts-Team
Presentation in the Science Coffee of the Advanced Concepts Team of the European Space Agency on the 07.06.2024.
Speaker: Diego Blas (IFAE/ICREA)
Title: Gravitational wave detection with orbital motion of Moon and artificial
Abstract:
In this talk I will describe some recent ideas to find gravitational waves from supermassive black holes or of primordial origin by studying their secular effect on the orbital motion of the Moon or satellites that are laser ranged.
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...PsychoTech Services
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
The debris of the ‘last major merger’ is dynamically youngSérgio Sacani
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...Scintica Instrumentation
Targeting Hsp90 and its pathogen Orthologs with Tethered Inhibitors as a Diagnostic and Therapeutic Strategy for cancer and infectious diseases with Dr. Timothy Haystead.
PPT on Direct Seeded Rice presented at the three-day 'Training and Validation Workshop on Modules of Climate Smart Agriculture (CSA) Technologies in South Asia' workshop on April 22, 2024.
Authoring a personal GPT for your research and practice: How we created the Q...Leonel Morgado
Thematic analysis in qualitative research is a time-consuming and systematic task, typically done using teams. Team members must ground their activities on common understandings of the major concepts underlying the thematic analysis, and define criteria for its development. However, conceptual misunderstandings, equivocations, and lack of adherence to criteria are challenges to the quality and speed of this process. Given the distributed and uncertain nature of this process, we wondered if the tasks in thematic analysis could be supported by readily available artificial intelligence chatbots. Our early efforts point to potential benefits: not just saving time in the coding process but better adherence to criteria and grounding, by increasing triangulation between humans and artificial intelligence. This tutorial will provide a description and demonstration of the process we followed, as two academic researchers, to develop a custom ChatGPT to assist with qualitative coding in the thematic data analysis process of immersive learning accounts in a survey of the academic literature: QUAL-E Immersive Learning Thematic Analysis Helper. In the hands-on time, participants will try out QUAL-E and develop their ideas for their own qualitative coding ChatGPT. Participants that have the paid ChatGPT Plus subscription can create a draft of their assistants. The organizers will provide course materials and slide deck that participants will be able to utilize to continue development of their custom GPT. The paid subscription to ChatGPT Plus is not required to participate in this workshop, just for trying out personal GPTs during it.
2. 2
INDEX
S. NO. DOCUMENTS DETAIL
PAGE
NO.
DATE
1. Equations of motion in detail 06 – 16 --------------
2. Copyrights Certificate 17 22-04-2008
3. Reviews of various Institutes 18 2008
4. RTI TO PSEB 19 – 22 05-12-2012
5. PSEB reply to my RTI 23 – 24 24-12-2012
6. RTI to CBSE 25 15-01-2013
7. CBSE reply to my RTI 26 13-02-2013
8. CBSE reply to my RTI 27 11-03-2013
9. My First Appeal 28 – 33 22-03-2013
10. Proposal letter sent to CBSE 34 06-04-2013
11. My Second RTI to CBSE 35 02-05-2013
12. My Second Appeal 36 21-05-2013
13. CBSE reply to my second RTI 37 07-06-2013
3. 3
14 Research paper published in IJERD 38 – 40 23-09-2013
15. CIC reply to my first RTI 41 28-10-2013
16.
Research sent to IIT Ropar & IOP through
G-mail
42 31-10-2013
17. Details of video-conference 43 08-11-2013
18. CIC Decision letter. 44 – 45 19-11-2013
19. RTI sent to IIT Ropar 46 06-01-2014
20. RTI sent to IOP (Institute of Physics) 47 06-01-2014
21. Legal notice sent to HRD & others 48 – 58 16-01-2014
22. COBOSE reply to legal notice 59 20-01-2014
23. IIT Ropar reply to my RTI 60 24-01-2014
24 IOP reply to my RTI 61 24-01-2014
25. CBSE reply to legal notice 62 03-03-2014
26. My clarification & Query on CBSE letter 63 – 64 --------------
27. HRD reply to legal notice 65 31-03-2014
28. NCERT’s lawyer reply to legal notice 66 – 67 13-05-2014
4. 4
29.
My lawyer letter to the lawyer of NCERT
to arrange meeting for discussion.
68
04-06-2014
30.
My letter to the lawyer of NCERT to
arrange meeting for discussion.
69 – 70 05-08-2014
31.
My RTI to NCERT to know the status of
my letter.
71 05-09-2014
32.
Meeting fixed through e-mail
conversation with NCERT
72 07-10-2014
33. Details of conversation with NCERT 73 30-10-2014
34. NCERT reply to my RTI 74 07-10-2014
35. Letter to the President 75 19-12-2014
36. Letter to the Prime Minister 76 19-12-2014
37. Letter to the HRD Minister 77 19-12-2014
38.
Documents attached with Letters of
President, Prime Minister & HRD Minister
78 – 80 19-12-2014
39. RTI to the Prime Minister 81 19-02-2014
40. RTI to the HRD Minister 82 19-02-2014
41. HRD reply to my letter 83 – 85 09-03-2015
5. 5
42. PMO reply to my RTI 86 – 88 10-03-2015
43. HRD reply to my RTI
89
13-04-2015
44. RTI to CBSE Academic Unit 90 18-05-2015
45. My letter to PMO Appellate Authority 91 22-05-2015
46. NCERT letter to me 92 14-05-2015
47. NCERT letter to me 93 18-05-2015
48. 2 NCERT letters to me 94 – 95 20-05-2015
49. My first appeal to CBSE 96 28-05-2015
50. My letter to HRD appellate Authority 98 – 100 30-05-2015
51 Other Documents 101 - ---- -------------
6. 6
Facts of the Issue: -
1. In the whole world all education boards have been teaching students that equations of motion are three but in
reality equations of motion are five.
2. No sixth equation exists; if anyone derived one more equation of motion then I will take this claim back.
3. All equations are derived from each other.
4. All the problems and numerical regarding equations of motion can solve with only two equations, there is no use
of third equation of motion. Choose only one equation from both A and B pool;
Pool-A Pool-B
a = (v –u) ÷ t S = ½ (u + v) t
------------------ S = ut + ½ at2
------------------ S = (v2
– u2
) ÷ 2a
------------------ S = vt – ½ at2
5. All the four equations of pool-B are same or in other words all equations of pool-B are used to calculate
displacement to make numerical easier, i.e. we use equation ‘S = ut + ½ at2
’ to calculate displacement very easily
when final velocity is not given, equation ‘S = (v2
– u2
) ÷ 2a’ to calculate displacement when time is not given,
equation S = vt – ½ at2
to calculate displacement when initial velocity is not given and equation S = ½ (u + v) t to
calculate displacement when acceleration is not given?
6. I think only one equation ‘S = (v2
– u2
) ÷ 2a’ is not directly derived from velocity-time graph. CBSE experts have
already accepted that equation ‘S = (v2
– u2
) ÷ 2a’ is usually attached the tag of third equation of motion.
7. In 2001, I had derived ‘S = vt – ½ at2
’. At that time when I searched this equation on Google then Google showed
no result, so I am also claiming that this equation was first derived by me.
8. In 2008, I took Copyright Certificate of fourth equation of motion (‘S = vt – ½ at2
’) from the Govt. of India.
9. In September 2013, we published our research paper named "Equations of motion are five in nature not three" in
International Journal of Engineering and Research Development [IJERD].
10. Many people says that they are using equation (‘S = vt – ½ at2
’) for long time, but I just want to say that I have
derived equation ‘S = vt – ½ at2
’ in 2000, if anyone proves that this equation has already published in any authentic
book, Website, research journal etc before 2001 OR anyone proves that this equation was derived by any other
person after 2000 having valid proofs then I will take that claim back.
11. This is not a key issue that who discovered that equation, by me or by other, the key issue is that why equations
‘S = ½ (u + v) t’ and ‘S = vt – ½ at2
’ were not considered as an equations of motion and why ‘S = (v2
– u2
) ÷ 2a’ was
considered as fundamental equation of motion?
12. A change in number of equations of motion will be a biggest achievement for India. So it can also become a
moment of pride for every Indian if we correct that mistake.
7. 7
Requisite condition for an equation to be consider as an equation of motion.
1. An equation must consist of kinematic variables i.e. time, displacement, final velocity, initial velocity &
acceleration.
2. The value of all the quantities must be correct, so that we can get correct value of the kinematical variable.
For e.g. if S = n (here n is any natural number) than in every equation in which we get the value of displacement (S)
is equal to “n” is an equation of motion, i.e.
S = (v2
– u2
) /2a = ut + ½ at2
= ½ (u + v) t = vt – ½ at2
= n
3. An equation must be in its shortest form.
For e.g. if “a = (v2
– u2
) ÷ 2vt – at2
” is an equation, then its shortest form is a = (v – u)/t;
a = (v2
– u2
) ÷ 2vt – at2
a = [(v – u) (v + u)] ÷ [t (2v – at)]
a = [(v – u) (v + u)] ÷ [t (2v – v + u)]
a = [(v – u) (v + u)] ÷ [t (v + u)]
a = (v – u) ÷ t
4. We use an equation as formulae, so we must remember that LHS variable must not be present in RHS. In case if
LHS variable is also present in RHS that means derivation is yet incomplete. After removing LHS variable from
RHS, we get an independent kinematical equation of motion.
For e.g., u = 2u – v + at, Here initial velocity 'u' is in both sides, so we removing 'u' from RHS by putting
u = v – at and get an equation of motion, i.e. u = v – at
u = 2u – v + at
u = 2(v – at) – v + at
u = 2v – 2at – v + at
u = v – at
5. The equation should not be the opposite view of its own.
For e.g. u = v – at is an equation of motion than v = u + at or a = (v - u) ÷ t or t = (v - u) ÷ a are not new equations of
motion.
Now only 5 equations can satisfy above mention all conditions.
i. a = (v – u) ÷ t [Displacement (S) independent equation]
ii. S = ut + ½ at 2
[Final velocity (v) independent equation]
iii. S = (v2
− u2
) ÷ 2a [Time (t) independent equation]
iv. S = vt – ½ at 2
[Initial Velocity (u) independent equation]
v. S = ½ (u + v) t [Acceleration (a) independent equation]
8. 8
Derivation of equations of motion from velocity-time graph
Consider the linear motion of a body with initial velocity u. The body accelerates uniformly and in time t, it acquires
the final velocity v. The velocity-time graph is a straight line AB as shown in figure. It is evident from the graph
that:
Initial velocity (at t = 0) = OA = CD = u
Final velocity (at t) = OE = BD = v
Figure-1. A velocity–time graph for an object undergoing uniform acceleration
Acceleration of the body (a) = Slope of the line AB
a = BC = BD − CD
AC OD
a = (v −−−− u) ÷ t ------------ (1)
From the velocity-time graph shown in Fig-1, the distance ‘S’ travelled by the object in time t, moving under
uniform acceleration ‘a’ is given by the area enclosed within the trapezium OABC under the graph. That is,
Distance travelled by a body in time ‘t’ is equal to area of the trapezium OABD.
S = ½ (sum of ǁ sides) × (⊥ distance between parallel sides)
S = ½ (OA + BD) × OD
S = ½ (u ++++ v) ×××× t ------------ (2)
From first equation of motion “t = (v − u) ÷ a”, we get
S = ½ × (u + v) × (v − u) ÷ a
S = ½ × (v2
− u2
) ÷ a
S = (v2
−−−− u2
) ÷ 2a or 2aS = (v2
−−−− u2
) ------------ (3)
In Fig-1, the distance travelled by the object is obtained by the area enclosed within OABD under the velocity-time
graph AB.
Thus, Distance travelled by a body in time ‘t’ is equal to area of the trapezium OABD.
S = area of rectangle OACD × area of triangle ABC
S = (OD × OA) + ½ (AC × BC)
S = (t × u) + ½ [t × at]
S = ut + ½ at2
------------ (4)
Distance travelled by a body in time ‘t’ is equal to area of the trapezium OABD.
S = area of rectangle OEBD – area of triangle ABE
S = (OD × OE) – ½ (AE × BE)
S = (t × v) – ½ (at × t)
S = (vt) – ½ (at2
)
S = vt −−−− ½ at2
------------ (5)
9. 9
Method to use an equation of motion
Graphical analysis is an important tool for physicists to use to solve problems. Sometimes, however, we have
enough information to allow us to solve problems algebraically. Algebraic methods tend to be quicker and more
convenient than graphical analysis. If you were in the vehicle, you would simply use the vehicle’s speedometer to
determine the speed of the vehicle. Knowing the speed of your vehicle, you could easily determine how far it would
travel in a given time interval using the equation v = S/t. As you can see, the best way to solve a problem is usually
determined by the information that is available to you. To be able to solve problems related to motion with uniform
acceleration, in which the velocity may change but the acceleration is constant, we need to use algebraic equations
to solve the numerical that describe this type of motion. Equations of motion are very useful to locate the position
and calculate the final velocity, initial velocity, acceleration and time taken by the object or body in uniform motion.
Table-1 shows the five key equations of accelerated motion. You should be able to solve any kinematic numerical
regarding equations of motion by correctly choosing one of these five equations. They involve the variables for
displacement, initial velocity, final velocity, acceleration, and time interval. In table-1, we see that in each equation
one variable is missing. When solving uniform acceleration problems, choose which equation to use based on the
given, missing and required variables of the problem.
Table-1. The Five Key Equations of Accelerated Motion.
Our first task is to determine which of the five equations of accelerated motion to use. Usually, you can solve a
problem using only one of the five equations. Second task is to identify which equation contains all the variables for
which we have given variables, missing variable and the unknown variable that we are asked to calculate. After
identifying the correct equation, you can use it to solve the numerical.
For example: -
1. A sports car approaches a highway on-ramp at a velocity of 20.0 m/s. If the car accelerates at a rate of 3.2
m/s2
for 5.0 s, what is the displacement of the car?
Sol: - Given: u = 20 m/s, a = 3.2 m/s2
, t = 5s.
Missing: final velocity (v).
Required: Displacement (S).
Analysis: In table 1, we see that equation-2 has all the given variables, missing variable and required variable. So,
we will have to use Equation-2 to easily solve this numerical rather than using another equation to make solution a
lengthy procedure.
Solution from Second equation of motion
S = ut + ½ at 2
S = (20m/s × 5s) + (½ × 3.2 m/s2
× 5s × 5s)
S = (100m) + (40m)
Displacement (S) = 140meter.
S. No. Kinematic equations of
motion
Variables found in
equation
Missing Variables in
equation
1. a = (v – u) ÷ t a, v, u, t Displacement (S)
2. S = ut + ½ at 2
S, a, u, t Final velocity (v)
3. S = (v2
− u2
) ÷ 2a S, a, v, u Time (t)
4. S = vt – ½ at 2
S, a, v, t Initial velocity (u)
5. S = ½ (u + v) × t S, v, u, t Acceleration (a)
10. 10
2. A sailboat accelerates uniformly from 6.0 m/s to 8.0 m/s at a rate of 0.50 m/s2
. What distance does
the boat travel?
Sol: - Given: u = 6.0 m/s, v = 8.0 m/s, a = 0.50 m/s2
.
Missing: Time.
Required: Displacement (S).
Analysis: In table 1, we see that equation-3 has all the given variables, missing variable and required
variable. So, we will have to use Equation-3 to easily solve this numerical rather than using another
equation to make solution a lengthy procedure.
Solution from Fourth equation of motion
S = (v2
− u2
) ÷ 2a
S = [(8.0 m/s)2
− (6.0 m/s)2
] ÷ [2 × 0.50 m/s2
]
S = [64 m2
/s2
− 36 m2
/s2
] ÷ [1 m/s2
]
Displacement = 28 meter.
3. A car is suddenly stops in 5s with a retardation of 23m/s2
, here final velocity is 0m/s(because car
is finally at rest ) calculate the total distance covered by the car.
Sol: - Given: v = 0 m/s, a = –23 m/s2
, t = 5s.
Missing: initial velocity (u).
Required: Displacement (D).
Analysis: In table 1, we see that equation-4 has all the given variables, missing variable and required
variable. So, we will have to use Equation-4 to easily solve this numerical rather than using another
equation to make solution a lengthy procedure.
Solution from Fourth equation of motion
S = vt – ½ at 2
S = (0m/s × 5sec) – (½ × –23m/s2
× 5sec × 5sec)
S = (0m) – (–287.5meters)
Displacement (S) = 287.5meters
4. A dart is thrown at a target that is supported by a wooden backstop. It strikes the backstop with
an initial velocity of 350 m/s. The dart comes to rest in 0.0050 s.
Sol: - Given: u = 350 m/s, v = 0 m/s, t = 0.0050s.
Missing: Acceleration (a).
Required: Displacement (S).
Analysis: In table 1, we see that equation-5 has all the given variables, missing variable and required
variable. So, we will have to use Equation-5 to easily solve this numerical rather than using another
equation to make solution a lengthy procedure.
Solution from Fifth equation of motion
S = ½ (u + v) × t
S = ½ (350 m/s + 0 m/s ) × 0.0050s
S = ½ × 350 m/s × 0.0050s
Displacement (S) = .88 meter.
11. 11
Today scientific communities have only two options: -
Pool-A Pool-B
a = (v –u) ÷ t S = ½ (v + u) × t
------------------ S = ut + ½ at2
------------------ S = (v2
– u2
) ÷ 2a
------------------ S = vt – ½ at2
Option-1. Scientific Community should only two equations [First equation from pool-A and
Second equation from any one equation from Pool B] as fundamental equations of motion and
other three equations of ‘pool B’ should be consider as additional equations of motion i.e. derive
forms of second equation of motion.
Option-2. As no sixth equation exists; so Scientific Community should consider all the five
equations as equations of motion, so that people could get entire knowledge about equations of
motion.
Note that: we can’t ignore any equation; all the equations are different in property and important
for students. Also sixth equation of motion can’t derive by velocity-time graph. If we consider
only one or three or four equations then it will not only confuse for students but also it means
you will give incomplete and improper knowledge to the young generation.
12. 12
On which basis equation ‘S = (v2
– u2
) ÷ 2a’ was considered as fundamental
equation of motion?
1. It doesn’t directly derive from velocity-time graph. So, why this equation was considered as
fundamental equation of motion?
2. It is only derived by eliminating time from S = vt – ½ at2
or S = ut + ½ at2
or S = ½ (u + v) t.
So, why a derived equation is considered as fundamental equation of motion?
3. What are the importance of equation ‘S = (v2
– u2
) ÷ 2a’. Mention each importance in detail
with example if possible.
4. We can solve all numerical problems with two equations of motion, i.e.
i) a = (v –u) ÷ t and
ii) S = ut + ½ at2
So, why three equation was considered as fundamental equations of motion?
5. If this equation considered as fundamental equation of motion on the basis that it calculate
displacement very easily when time is not given; then why equation S = vt – ½ at2
and equation
S = ½ (u + v) t didn’t consider as fundamental equation of motion as equation S = vt – ½ at2
also
calculate displacement very easily when initial velocity is not given and Equation S = ½ (u + v) t
calculate displacement very easily when acceleration is not given?
13. 13
Derivation of other equations from ‘S = ut + ½ at2
’
Case-I S = ut + ½ at2
Put t = (v – u) ÷ a in above equation, we get
S = u [(v – u) ÷ a] + ½ a [(v – u) ÷ a]2
S = [(uv – u2
) ÷ a] + ½ [(v – u)2
÷ a]
S = [(uv – u2
) ÷ a] + ½ [(v2
+ u2
– 2uv) ÷ (a)]
S = [2uv – 2u2
÷ 2a] + [v2
+ u2
– 2uv ÷ 2a]
LCM of RHS is 2a, hence
S = (2uv – 2u2
+ v2
+ u2
– 2uv) ÷ 2a
S = (v2
– u2
) ÷ 2a
Equation S = (v2
– u2
) ÷ 2a is derive from Equation S = ut + ½ at 2
.
Case-II S = ut + ½ at 2
Put u = v – at in above equation, we get
S = (v – at) t + ½ at2
S = vt – at2
+ ½ at2
S = vt – ½ at2
Equation S = vt – ½ at2
is derive from Equation S = ut + ½ at2
.
Case-III S = ut + ½ at2
Put a = (v – u) ÷ t in above equation, we get
S = ut + ½ [(v – u) ÷ t] t 2
S = ut + ½ [(v – u)] t
S = ut + ½ (vt – ut)
S = ut + ½ vt – ½ ut
S = ½ vt + ½ ut
S = ½ (v + u) t
Equation S = ½ (v + u) t is derive from Equation S = ut + ½ at2
.
14. 14
Derivation of other equations from ‘S = (v2
– u2
) ÷ 2a’
Case-I S = (v2
– u2
) ÷ 2a
Put v = u + at in above equation, we get
S = [(u + at) 2
– u2
] ÷ 2a
S = (u2
+ a2
t 2
+ 2uat – u2
) ÷ 2a
S = (u2
– u2
+ a2
t 2
+ 2uat) ÷ 2a
S = (a2
t 2
+ 2uat) ÷ 2a
S = ½ at 2
+ ut
S = ut + ½ at 2
Equation S = ut + ½ at 2
is derive from Equation S = (v2
– u2
) ÷ 2a
Case-II S = (v2
– u2
) ÷ 2a
Put u = v – at in above equation, we get
S = [v 2
– (v – at)2
] ÷ 2a
S = [v 2
– (v2
+ a2
t 2
– 2vat)] ÷ 2a
S = [v 2
– v2
– a2
t 2
+ 2vat)] ÷ 2a
S = [– a2
t 2
+ 2vat] ÷ 2a
S = – ½ at 2
+ vt
S = vt – ½ at 2
Equation S = vt – ½ at 2
is derive from Equation S = (v2
– u2
) ÷ 2a
Case-III S = (v2
– u2
) ÷ 2a
Put a = (v – u) ÷ t in above equation, we get
S = [(v2
– u2
)] ÷ [2(v – u) ÷ t]
S = [(v2
– u2
) t] ÷ [2(v – u)]
S = [(v – u) (v + u) t] ÷ [2(v – u)]
S = [(v + u) t] ÷ [2]
S = ½ (v + u) t
Equation S = ½ (v + u) t is derive from Equation S = (v2
– u2
) ÷ 2a
15. 15
Derivation of other equations from ‘S = vt – ½at2
’
Case-I S = vt – ½ at2
Put u = v – at in above equation, we get
S = (u + at) t – ½ at2
S = ut + at2
– ½ at2
S = ut + ½ at2
Equation S = ut + ½ at 2
is derive from Equation S = vt – ½ at2
.
Case-II S = vt – ½ at2
Put a = (v – u) ÷ t in above equation, we get
S = vt – ½ [(v – u) ÷ t] t 2
S = vt – ½ [(v – u)] t
S = vt – ½ (vt + ut)
S = vt – ½ vt + ½ ut
S = ½ vt + ½ ut
S = ½ (v + u) t
Equation S = ½ (v + u) t is derive from Equation S = vt – ½ at2
Case-III S = vt – ½ at2
Put t = (v – u) ÷ a in above equation, we get
S = [v(v – u) ÷ a)] – ½ a[(v – u) ÷ a)]2
S = [(v2
– vu) ÷ a)] – ½ a[(v – u) 2
÷ a2
)]
S = [(v2
– vu) ÷ a)] – ½ a[v2
+ u 2
– 2uv ÷ a2
)]
S = [(v2
– vu) ÷ a)] – ½ [v2
+ u 2
– 2uv ÷ a)]
S = [(v2
– vu – ½v2
– ½u 2
– uv) ÷ (a)]
S = [(v2
– ½v2
– ½u 2
) ÷ (a)]
S = [(½v2
– ½u 2
) ÷ (a)]
S = (v2
– u 2
) ÷ 2a
Equation S = (v2
– u 2
) ÷ 2a is derive from Equation S = vt – ½ at2
16. 16
Derivation of other equations from ‘S = ½ (v + u) t’.
Case-I S = ½ (v + u) t
Put v = u + at in above equation, we get
S = ½ [u + at + u] × t
S = ½ [2u + at] × t
S = ½ [2ut + at2
]
S = ut + ½ at2
Equation S = ut + ½at2
is derive from Equation S = ½ (v + u) t
Case-II S = ½ (v + u) t
Put u = v – at in above equation, we get
S = ½ (v + v – at) × t
S = ½ (2v – at] × t
S = ½ (2vt – at2
)
S = vt – ½at2
Equation S = vt – ½at2
is derive from Equation S = ½ (v + u) t
Case-III S = ½ (v + u) t
Put t = (v – u) ÷ a in above equation, we get
S = ½ (v + u) (v – u) ÷ a
S = ½ (v2
– u2
) ÷ a
S = v2
– u2
÷ 2a
Equation S = v2
– u2
÷ 2a is derive from Equation S = ½ (v + u) t
19. 19
TYPED RTI APPLICATION TO PSEB
RTI Application Form
FORM ‘A’
See Rule 3(1)
I. D. No……………..
(For Office Use Only)
To
The Public Information Officer/ THE SECRETARY,
Assistant Public Information Officer P.S.E.B., S.A.S.NAGAR, MOHALI.
1. Full Name of the Applicant : AMRIT PAL SINGH
2. Father Name/Spouse Name : DARSHAN SINGH
3. Permanent Address : HOUSE NO. - 303, STREET NO. - 10,
: PREM BASTI, SANGRUR-148001.
4. Correspondence Address : HOUSE NO. - 303, STREET NO. – 10,
: PREM BASTI, SANGRUR-148001.
5. Particulars of the Information Solicited
a) Subject Matter of Information : EQUATIONS OF MOTION.
b) The period to which information relates : 30 DAYS.
c) Specific Details of Information required: It has been mentioned in your 9th
standard Science book that S = ut + ½ at2
is a second equation of motion and v2
= u2
+ 2aS is a
third equation of motion where as equation S = ½(v + u)t is not consider as equation of motion. I
have noticed that S = ut + ½ at2
, v2
= u2
+ 2aS and S = ½(v + u)t are derived from each other.
Also all numerical regarding equations of motion are solved by using two equations of motion
i.e. a =(v-u)/t and S = ut + ½ at2
OR v2
= u2
+ 2aS OR S = ½(v + u)t. So in this concern I need all
the information that on which basis you teach students that both 2nd
& 3rd
equations of motion
are different, also on which basis 2nd
and 3rd
equations are consider as equations of motion but
S = ½ (v + u) × t is not.
d) Whether information is required by Post or in :
person (the actual postal fees shall be included : BY POST
in additional fee in providing the information)
e) In case by Post (ordinary/registered : REGISTERED POST
or speed post)
6. Is this information not made available by
public authority under voluntary disclosure? : YES.
7. Do you agree to pay the required fee? : YES.
8. Have you deposited application fee? : INDIAN POSTAL ORDER / Rs. 100/
(If Yes, Details of such deposit) :
9. Whether belongs to below Poverty Line category? : NO.
(If yes, you furnished the proof of the same with
application?)
Place: SANGRUR.
Date: 05-DECEMBER-2012 Signature of Applicant
20. 20
DOCUMENTS ATTACHED WITH RTI APPLICATION - 1
CASE-I
S = ut +½ at2
Put the value of t = (v – u) ÷ a in above equation, we get
S = u [(v – u) ÷ a] + ½ a [(v – u) ÷ a]2
S = [(uv – u2
) ÷ a] + ½ [(v – u)2
÷ a]
S = [(uv – u2
) ÷ a] + [(v2
+ u2
– 2uv ÷ 2a)]
S = [2uv – 2u2
÷ 2a] + [v2
+ u2
– 2uv ÷ 2a]
S = 2uv – 2u2
+ v2
+ u2
– 2uv ÷ 2a
S = (v2
– u2
) ÷ 2a
From above derivation is it proved that both equations
S = ut +½ at2
and S = (v2
– u2
) ÷ 2a are same?
CASE-II
S = (v2
– u2
) ÷ 2a
Put the value of v = u + at in above equation, we get
S = [(u + at) 2
– u2
] ÷ 2a
S = (u2
+ a2
t 2
+ 2uat – u2
) ÷ 2a
S = (a2
t 2
+ 2uat) ÷ 2a
S = ½ at 2
+ ut
S = ut + ½ at 2
From above derivation is it proved that both equations
S = (v2
– u2
) ÷ 2a and S = ut +½ at2
are same?
21. 21
DOCUMENTS ATTACHED WITH RTI APPLICATION - 2
CASE-III
S = ut + ½ at 2
We know that a = (v – u) ÷ t put this value of ‘a’ in above equation, we get
S = ut + ½ [(v – u) ÷ t] t 2
S = ut + ½ [(v – u)] t
S = ut + ½ (vt – ut)
S = ut + ½ vt – ½ ut
S = ½ vt + ½ ut
S = ½ (v + u) ×××× t
From above derivation is it proved that both equations
S = ut +½ at2
and S = ½ (v + u) × t are same or different?
CASE-IV
S = ½ (v + u) ×××× t
We know that v = u + at put this value of ‘v’ in above equation, we get
S = ½ [(u + at) + u] × t
S = ½ [u + at + u] × t
S = ½ [2u + at] × t
S = ½ [2ut + at2
]
S = ut + ½ at2
From above derivation is it proved that both equations
S = ½ (v + u) × t and S = ut +½ at2
are same or different?
22. 22
DOCUMENTS ATTACHED WITH RTI APPLICATION - 3
CASE-V
S = ½ (v ++++ u) t
Put the value of t = (v – u) ÷ a in above equation, we get
S = ½ (v + u) [(v – u) ÷ a]
S = ½ [(v2
– u2
) ÷ a]
S = (v2
– u2
) ÷ 2a
From the basis of above derivation is it proved that
S = (v2
– u2
) ÷ 2a is a derived form of S = ½ (v + u) t?
CASE-VI
S = (v2
– u2
) ÷ 2a
Put the value of a = (v – u) ÷ t in above equation, we get
S = [(v2
– u2
)] ÷ [2(v – u) ÷ t]
S = [(v – u) (v + u) × t]] ÷ [2(v – u)]
S = [(v + u) × t] ÷ [2]
S = ½ (v ++++ u) t
From the basis of above derivation is it proved that
S = ½ (v + u) t is a derived form of S = (v2
– u2
) ÷ 2a?
29. 29
TYPED & CORRECTED FIRST APPEAL
To,
The professor / Director,
(Academics, Research, Training & Innovation)
Central Board of Secondary Education
‘Shiksha Sadan’, Institutional Area, Academic Unit,
17, Rouse Avenue, New Delhi – 110002.
Subject: - Appeal to first appellate Authority.
Respected Sir,
I have received the letter of PIO of Academic unit, C.B.S.E. regarding R.T.I. CASE
No.-7835 on 15.March.2013. I am not satisfied with the information given to me. I have attached
all the documents that justify my point. Now I am appealing to the first appellate Authority of
C.B.S.E. (Academics, Research, Training and Innovation) “please provide me correct and
reasonable information”.
Thanking You,
DATE = 22.March.2013
Yours Sincerely,
Amritpal Singh
30. 30
DOCUMENTS ATTACHED WITH FIRST APPEAL - 1
S.No. CBSE Experts My query
1. The two equations v = u + at and
S = ut + ½ at2
are regarded as the two
independent kinematical equations of
motion because these can be directly
derived using the basic definitions of
velocity and acceleration.
I disagree that only these two equations [v = u + at and
S = ut + ½ at2
] are independent kinematical equations
of motion and only these can be directly derived using
the basic definitions of velocity and acceleration.
2. The third equation v2
- u2
= 2aS as does
not quite meet the above criterion.
However, it is usually attached the tag
‘third equation of motion’ because of
its usefulness and convenience in
solving a wide variety of useful
problems.
I agree to your statement that it usually attached the
tag of third equation of motion, so now stop attaching
tag of third equation of motion to it. However I
strongly believe that you’re SO CALLED helpful
equation of motion in solving wide variety of problems
is superfluous i.e. to say that first two equations of
motions [v = u + at and S = ut + ½ at2
] are more than
enough to solve all kinds of problems and if not then
send me that particular statement [problem] with an
attachment, I can solve it without using third equation
of motion [v2
- u2
= 2aS].
3. The expression S = [(u + v) ÷ 2] t, is
just the mathematical form of the
definition of average speed, and is,
therefore, not really an independent
equation of motion.
The whole equation S = [(u + v) ÷ 2]t is not the
definition of average speed, it is the definition of
displacement and is an equation of motion. The
mathematical form of the definition of average speed
is (u + v) ÷ 2.
E.g. The definition of force is F = m [(v - u) ÷ t], what
you people are explaining is that this is not an
equation of force but definition of acceleration
instead. Now you yourself ponder over whether it is an
equation of force or an equation of acceleration.
4. It is not derived using basic definitions
and needs information about the
initial velocity as well as the final
velocity after a certain time.
It is derived using basic definitions i.e. derived from
velocity-time graph and is independent kinematical
equation of motion. It is very useful and convenience
in solving a wide variety of useful problem. I have
attached the documents. SO now is the time for CBSE
to lead the world education and put that change by
considering S = [(u + v) ÷ 2]t as equation of motion.
31. DOCUMENTS ATTACHED WITH FIRST APPEAL
Derivation of Fifth equation of motion from velocity
Consider the linear motion of a body with initial
in time t, it acquires the final velocity v. The velocity
in figure. It is evident from the graph that:
Initial velocity (at t = 0) = OA = CD = u
The distance travelled by a body in time “t” is equal to area of the trapezium OABD
S = ½ (sum of
From above derivation it is proved that this equation is independent kinematical equation of
motion. Because it is derived directly from velocity
basic definitions of velocities and acceleration.
What is important to notice is that the quantity of acceleration is not present in this equation. We
say, therefore, that the equation is
This equation is often useful in kinematics problems where you do not know the
the body but still have to work with the
31
DOCUMENTS ATTACHED WITH FIRST APPEAL
Derivation of Fifth equation of motion from velocity
Consider the linear motion of a body with initial velocity u. The body accelerates uniformly and
in time t, it acquires the final velocity v. The velocity-time graph is a straight line AB as shown
in figure. It is evident from the graph that:
Initial velocity (at t = 0) = OA = CD = u
Final velocity (at t) = OE = BD = v
The distance travelled by a body in time “t” is equal to area of the trapezium OABD
S = ½ (sum of parallel sides) × (⊥ distance between parallel
S = ½ (OA + BD) × OD
S = ½ (u ++++ v) ×××× t
derivation it is proved that this equation is independent kinematical equation of
motion. Because it is derived directly from velocity-time graph or in other words is derived using
basic definitions of velocities and acceleration.
ce is that the quantity of acceleration is not present in this equation. We
say, therefore, that the equation is acceleration independent.
This equation is often useful in kinematics problems where you do not know the
e to work with the velocities, time, and displacement.
DOCUMENTS ATTACHED WITH FIRST APPEAL - 2
Derivation of Fifth equation of motion from velocity-time graph.
velocity u. The body accelerates uniformly and
time graph is a straight line AB as shown
The distance travelled by a body in time “t” is equal to area of the trapezium OABD
distance between parallel sides)
derivation it is proved that this equation is independent kinematical equation of
time graph or in other words is derived using
ce is that the quantity of acceleration is not present in this equation. We
This equation is often useful in kinematics problems where you do not know the acceleration of
.
32. DOCUMENTS ATTACHED WITH FIRST APPEAL
Derivation of third equation of motion from velocity
The distance travelled by a body in time ‘t’ is equal to area of the trapezium
S = ½ (sum of parallel
From first equation of motion (1), t
S = (v
Equation (3) represents third equation of motion. What is important to notice is that the quantity
of time is not present in this equation. We say, therefore, that the equation is
equation kinematical equation of motion. This equation is often useful in kinematics problems
where you do not know the time
final velocity
32
DOCUMENTS ATTACHED WITH FIRST APPEAL
Derivation of third equation of motion from velocity
The distance travelled by a body in time ‘t’ is equal to area of the trapezium
OABD
parallel sides) ×××× (⊥⊥⊥⊥ distance between parallel
S = ½ (OA + BD) × OD
S = ½ (u ++++ v) ×××× t ---------- (a)
From first equation of motion (1), t = (v −−−− u) ÷ a
S = ½ × (u + v) × (v − u) ÷ a
S = ½ × (v2
− u2
) ÷ a
S = (v2
−−−− u2
) ÷ 2a or 2aS = v2
−−−− u2
Equation (3) represents third equation of motion. What is important to notice is that the quantity
of time is not present in this equation. We say, therefore, that the equation is
equation kinematical equation of motion. This equation is often useful in kinematics problems
time taken by the body but still have to work with the initial velocity,
final velocity, acceleration, and displacement.
DOCUMENTS ATTACHED WITH FIRST APPEAL - 3
Derivation of third equation of motion from velocity-time graph.
The distance travelled by a body in time ‘t’ is equal to area of the trapezium
distance between parallel sides)
(a)
u) ÷ a
--------- (3)
Equation (3) represents third equation of motion. What is important to notice is that the quantity
of time is not present in this equation. We say, therefore, that the equation is time independent
equation kinematical equation of motion. This equation is often useful in kinematics problems
taken by the body but still have to work with the initial velocity,
33. 33
DOCUMENTS ATTACHED WITH FIRST APPEAL - 4
Importance of Fifth Equation of Motion
Question: - if you were asked to solve the below numerical in an entrance
examination like NDA or IAS which equation of motion will you use?
A travelling car is travelling with a speed 115m/s is suddenly stops in 5seconds,
here final velocity is 0m/s (because the car is finally at rest) calculate the distance
covered.
Traditional method to solve the above problem
Solution from Second equation of motion
S = ut + ½ at2
S = [(115 × 5sec) + (½ × a × 5sec ×5sec)]
S = [(575meters) + (½ × a × 25sec2
)]
S = [(575meters) + (a × 12.5sec2
) ---------- (8)
Solution from Third equation of motion
S = (v2
− u2
) ÷ 2a
S = [(0m/s) 2
– (115m/s)2
] ÷ (2a)
S = [(0m/s) 2
– (13225m2
/s2
)] ÷ (2a)
S = – (13225m2
/s2
)] ÷ (2a) ----------- (9)
Here we are not able to find exact value of distance in numeric when
acceleration is not given,
Solution from Fifth equation of motion
S = ½ (u + v) × t
S = ½ (115m/s + 0m/s) × 5sec
S = 57.5m/s × 5sec
S = − 287.5meters
Here negative sign shows retardation.
Answer: - I have used Fifth equation of motion to solve the above numerical. Because it is
the easiest & fastest way to solve the numerical when acceleration (a) is not given as
compare to other rest of the equations of motion.
42. 42
RESEARCH SENT TO IIT ROPAR THROUGH G-MAIL
RESEARCH SENT TO IOP THROUGH G-MAIL
43. 43
DETAILS OF VIDEO-CONFERENCE
On 08.Nov.2013 a video Conference with Ram Shankar held to sort out the issue regarding
number of equations of motion. Before the meeting, I prepared 8 minutes presentation to explain
the deep facts & figures of my research with solution so that this process could be ended. But in
the video conference when I was trying to explain the matter then they cut the video conference
after just 4 minutes conversation rather than to solve the problem. It is not justified to incomplete
discussion with anyone. In our conversation, Mr. Ram Shankar told me, “your RTI doesn’t
comes under RTI act however we gave you the information as this was an educational issue also
CBSE have given you the last and final information hence we can’t give you any more
information”. Look at their reply in the attachment, is information given by CBSE enough and
correct.
63. 63
MY QUERY TO THE CBSE LETTER - 1
CBSE letter
The set of three equations of motion is derived from a velocity-time graph.
i. v = u + at.
ii. S = ut + ½ at 2
.
iii. S = (v2
− u2
) ÷ 2a.
It is generally accepted by the scientific community that, for a constant acceleration, this set is
sufficient to study the particle’s motion at any instance. However, one can present these
equations in many other mathematica forms (as it is given in the referred document). Such
rearranged equations also lead to a correct description about the particle’s motion. Some
websites(e.g.http://www.lakeheadschools.ca/scvi_staff/brecka/Gr11_physics_web/downloadable_con
tent/unit1/text1/phys11_1_5.pdf) also appear to have made reference to this effect.
My Query
Point first: - the web address you give, on this web address it was mentioned that
You should be able to solve any kinematics question by correctly choosing one of these five
equations. You have seen how the first three are developed. We will leave the others to be
developed as an exercise.
i. S = ½ (u + v) t.
ii. v = u + at.
ii. S = ut + ½ at 2
.
iii. S = (v2
− u2
) ÷ 2a.
iv. S = vt – ½ at 2
.
Firstly, on your above said web address S = ½ (u + v) t was mentioned as first equation of
motion but the scientific community was not considered as equation of motion, why?
Secondly, first three equations mentioned on your mentioned web address are different from
three equations accepted by scientific community.
Thirdly, it is mentioned on your said web address that equations “S = (v2
− u2
) ÷ 2a”,
“S = vt – ½ at 2
” are developed as an exercise, but actually you consider “S = (v2
− u2
) ÷ 2a” as
an equation of motion which is developed as an exercise.
64. 64
MY QUERY TO THE CBSE LETTER - 2
Point second: - I am strongly said that the set of three equations is wrong; either the set should
be consisted of two equations or five equations. E.g.
By choosing only one equation from both A and B pool; you can solve all the problems and
numerical regarding equations of motion with only these two equations of motion.
Pool-A Pool-B
a = (v –u) ÷ t S = ½ (u + v) t
------------------ S = ut + ½ at2
------------------ S = (v2
– u2
) ÷ 2a
------------------ S = vt – ½ at2
Today scientific communities [S.C.] have only two options: -
Option-1 Scientific communities [S.C.] should consider only two equations [First from pool A
and Second from Pool B] and other three equations of ‘pool B’ should be considered as derived
form of second equation of pool B].
Option-2 Scientific communities [S.C.] should consider all the five equations as equations of
motion, so that people could get complete knowledge about equations of motion.
Note that: you never ignore any equation; all the equations are different in property and
important for students. Also no sixth equation of motion can be derived by velocity-time graph.
If you consider only one or three or four equations then it would confuse the students by giving
incomplete and improper knowledge to the young generation.
70. 70
DOCUMENTS ATTACHED WITH MY LETTER
1. You said that a set of mathematically driven equations from a velocity-time graph representing the motion
of an object as given in the text books and other reference books is applicable in inertial frames of references.
This means that these equations deal motion under constant acceleration.
My Query: “S = (v + u) t” and “S = vt – ½ at2
” are drive from a v-t graph representing the motion of an object and
are applicable in inertial frames of references. These equations also deal motion under constant acceleration.
2. These equations can always be rearranged to generate new mathematical formulations. However, the
equations that contain acceleration term are generally chosen in a set of equations of motion.
My Query: Here if you says two equations [u = v – at and S = ut + ½ at2
] can always be rearranged to generate new
mathematical formulations then it makes sense. But you said that set of three equations [i.e. u = v – at, S = ut + ½ at2
and “S = (v2
– u2
) ÷ 2a”] can always be rearranged to generate new mathematical formulations and it doesn’t make
any sense, because equation “S = (v2
– u2
) ÷ 2a” is generated by rearranging u = v – at and S = ut + ½ at2
.
S = ut + ½ at2
Put t = (v – u) ÷ a in above equation, we get
S = u [(v – u) ÷ a] + ½ a [(v – u) ÷ a]2
S = [(uv – u2
) ÷ a] + ½ [(v – u)2
÷ a]
S = [(uv – u2
) ÷ a] + ½ [(v2
+ u2
– 2uv) ÷ (a)]
S = [2uv – 2u2
÷ 2a] + [v2
+ u2
– 2uv ÷ 2a]
LCM of RHS is 2a, hence
S = (2uv – 2u2
+ v2
+ u2
– 2uv) ÷ 2a
S = (v2
– u2
) ÷ 2a
3. Now here you said that the equations that contain acceleration term are generally chosen in a set of
equations of motion.
My Query: i) There is no individual usefulness of “S = (v2
– u2
) ÷ 2a” except it calculate displacement faster than
other equation when time is not given.
ii) It is derived by using u = v – at and S = ut + ½ at2
, so here if Scientific community consider “S = (v2
– u2
) ÷ 2a”
as a fundamental equation of motion, then Now Scientific community will have to answer why equations
“S = (v + u) t” and “S = vt – ½ at2
” are not considered as fundamental equations of motion.
iii) On which criterion equations are considered as fundamental equations of motion.
Please don’t think that if you change the number of equations of motion then people will question that why NCERT
had been teaching wrong or improper or incomplete information about equations of motion to them. Moreover
people will appreciate you if NCERT will raise this issue in front of international scientific community and make
that change. Also it will become a matter of proud for each and every Indian if we correct that mistake and give true
and complete knowledge to the world.
Note: At the end international scientific community will have to consider two equations (Acceleration and
displacement equation) as fundamental equations of motion and another three equations(Displacement equations)
will have to consider as additional equations of motion.
72. MEETING FIXED THROUGH E
72
MEETING FIXED THROUGH E-MAIL CONVERSATIONMAIL CONVERSATION
73. 73
DETAILS OF CONVERSATION WITH NCERT
On 30.10.2014, meeting held at NCERT campus to sort the issue, but in the meeting I answered all the
doubts/questions of NCERT but on the other hand they didn’t able to answer any of my doubt. Some
main points of the meetings are these: -
1. They didn’t manage to prove the difference between second equation of motion and third equation of
motion instead they only said “we can’t give ‘u’ and ‘a’ independent equations”. To quote their own
wording “YEH HAMARA VERSION HAI, AAP MAANIYE TOH THEEK, NA MAANIYE TOH
THEEK”. Could they explain me the facts that why they can’t give ‘u’ and ‘a’ independent equations”.
2. They agreed that total equations of motion are five and all five equations are equations of motion but
they totally refused to give me written statement. Is that right?
3. Adding to this they also said that they could have published 2 equations or 5 equations but published 3
equations as “per our WISH”.
4. In NCERT book nowhere is written that only these three are equations of motion.
5. They also asked sarcastically what will you do if textbook development committee eradicates the whole
‘Motion’ chapter from NCERT science book.
6. At the end they said that whenever NCERT book will be republished in future then we will place this
matter before the textbook development committee. But till today they forwarded my appeal neither to
textbook development committee (to check whether I am right or not?) nor to the higher concerned
authority (for requesting to reprint NCERT science book).
78. 78
DOCUMENTS ATTACHED WITH LETTERS OF PRESIDENT,
PRIME MINISTER & HRD MINISTER - 1
My particulars are as under: -
Name: - Mr. Amritpal Singh Nafria.
Father Name: - S. Darshan Singh Nafria.
Date of Birth: - 09-August-1985.
Address: - House Number-303, Street Number-10, Prem Basti, Sangrur-148001 (Pb).
E-mail: dukyalways4u@gmail.com.
Mobile: +917814080880, +918559012321.
Current Status: - Researching on laws of motion and Duky’s theory.
Case History: - I filed an application for the request of copyrights certificate on 17.March.2008.
On 22.04.2008, Deputy Registrar of copyrights office, New-Delhi issued to me the copyrights
certificate of fourth equation of motion [S = vt – ½ at 2
].
In the same year I had taken the reviews of various physics professors from Punjab, whether
equations [S = ut + ½ at 2
& S = vt – ½ at 2
] are equations of motion or not? In their remarks,
H.O.D. of various Universities and colleges admitted that these are equations of motion and
should be considered as equations of motion.
On May 23, 2012 we had organized press conference at Chandigarh press. Press reporter advised
us to send our research to PSEB, CBSE and NCERT to take their reviews. If CBSE & PSEB
accepted your research or they didn’t reply then we will highlight this news.
In the same year I sent RTI to PSEB asked for information. [It has been mentioned in your 9th
standard Science book that S = ut + ½ at2
is a second equation of motion and v2
= u2
+ 2aS is a
third equation of motion where as equation S = ½(v + u)t is not consider as equation of motion. I
have noticed that S = ut + ½ at2
, v2
= u2
+ 2aS and S = ½(v + u)t are derived from each other.
Also all numerical regarding equations of motion are solved by using two equations of motion
i.e. a = (v-u)/t and S = ut + ½ at2
OR v2
= u2
+ 2aS OR S = ½(v + u)t. So in this concern I need
all the information that on which basis you teach students that both 2nd
& 3rd
equations of motion
are different, also on which basis 2nd
and 3rd
equations are consider as equations of motion but
S = ½ (v + u) × t is not].
PSEB replied that they strictly follow NCERT books and syllabus. In NCERT 9th
class book only
above said three equations are considered as equations of motion. Teachers are going to teach
and follow whatever is written in the prescribed books. If NCERT does any change in the above
topic then PSEB is bound to follow that change in text books.
79. 79
DOCUMENTS ATTACHED WITH LETTERS OF PRESIDENT,
PRIME MINISTER & HRD MINISTER - 2
When PSEB didn’t provide me information then I sent same RTI to CBSE after two months they
sent me information but it was not up to the mark. In the information they admitted that 1st
& 2nd
equations are independent kinematical equations and 3rd
equation is usually attached the tag of
equation of motion for their usefulness and convenience of solving a wide variety of numerical
but they didn’t provide me the usefulness and convenience of 3rd
equation of motion till now.
Then I filed First appeal with genuine reason that CBSE didn’t provide me the true information.
When I didn’t get information in the given time after First appeal then I filed Second appeal. In
the response of my second appeal Central Information Commissioner organized a video
conference with Ram Shankar on 08-11-2013 at 12:30PM.
I have prepared 8 minutes presentation to explain the deep facts & figures of my research with
solution so that this process could be ended. But on 08-11-2013, in the video conference when I
was trying to explain the matter then they cut the video conference within 4 minutes
conversation, before asking me that have I any doubt regarding the reply of the experts of CBSE.
In our conversation, Mr. Ram Shankar told me, “your RTI doesn’t comes under RTI act however
we gave you the information as this was an educational issue also CBSE have given you the last
and final information hence we can’t give you more information”. Look at their reply in the
attachment, is information given by CBSE ok.
When both CBSE & PSEB didn’t provide me the true information then I hired an advocate
Tejinderpal Singh from Chandigarh-Haryana High-court. My lawyer sent court notice to HRD
ministry, UGC, CBSE, NCERT, COBOSE, Department of School education and Literacy,
Department of higher education.
On 31-03-2014, HRD ministry ordered NCERT to provide suitable reply to me. But again
NCERT provide me the improper information but they told me that if NCERT reply is not up to
the mark then I may visit NCERT campus to solve this issue. Hence on 04-06-2014 my lawyer
sent a letter to the advocate of NCERT with valid reason and requesting to arrange a meeting to
solve this issue. But they didn’t reply at all.
On 05-08-2014, I have sent a requesting letter to arrange a meeting but they didn’t replied.
On 05-09-2014, I have sent an RTI requesting for information that please give me all the
information what were the reasons that you couldn’t arrange the meeting and also provide me
information of some dates (with time) on which I may visit NCERT for further discussions.
On 07-10-2014, First meeting fixed on mutually convenient day in the office of Head, DESM,
Janaki Ammal Block, NCERT at 11:30M on 30.10.2014.
On 30-10-2014, In the meeting NCERT admitted equations of motion are five on the other side
they flatly refused it and said that they could have published 2 equations or 5 equations but
published 3 equations as “per our WISH”, “Hamare ghar mein kaun si daal banegi yeh aap thoda
bataogey”.
80. 80
DOCUMENTS ATTACHED WITH LETTERS OF PRESIDENT,
PRIME MINISTER & HRD MINISTER - 3
RTI Information given by CBSE and my Query
S.No. CBSE Experts My query
1. The two equations v = u + at and
S = ut + ½ at2
are regarded as the two
independent kinematical equations of
motion because these can be directly
derived using the basic definitions of
velocity and acceleration.
I disagree that only these two equations [v = u + at and
S = ut + ½ at2
] are independent kinematical equations
of motion and only these can be directly derived using
the basic definitions of velocity and acceleration.
2. The third equation v2
- u2
= 2aS as does
not quite meet the above criterion.
However, it is usually attached the tag
‘third equation of motion’ because of
its usefulness and convenience in
solving a wide variety of useful
problems.
I agree to your statement that it usually attached the tag
of third equation of motion, so now stop attaching tag
of third equation of motion to it. However I strongly
believe that you’re SO CALLED helpful equation of
motion in solving wide variety of problems is
superfluous i.e. to say that first two equations of
motions [v = u + at and S = ut + ½ at2
] are more than
enough to solve all kinds of problems and if not then
send me that particular statement [problem] with an
attachment, I can solve it without using third equation
of motion [v2
-u2
= 2aS].
3. The expression S = [(u + v) ÷ 2] t, is
just the mathematical form of the
definition of average speed, and is,
therefore, not really an independent
equation of motion.
The whole equation S = [(u + v) ÷ 2]t is not the
definition of average speed, it is the definition of
displacement and is an equation of motion. The
mathematical form of the definition of average speed is
(u + v) ÷ 2.
E.g. The definition of force is F = m [(v - u) ÷ t], what
you people are explaining is that this is not an equation
of force but definition of acceleration instead. Now you
yourself ponder over whether it is an equation of force
or an equation of acceleration.
4. It is not derived using basic definitions
and needs information about the initial
velocity as well as the final velocity
after a certain time.
It is derived using basic definitions i.e. derived from
velocity-time graph and is independent kinematical
equation of motion. It is very useful and convenience in
solving a wide variety of useful problem. I have
attached the documents. SO now is the time for CBSE
to lead the world education and put that change by
considering S = [(u + v) ÷ 2]t as equation of motion.
81. 81
TYPED RTI TO THE PRIME MINISTER
RTI Application Form
FORM ‘A’
See Rule 3(1)
I. D. No……………..
(For Office Use Only)
To
The Public Information Officer/ Shri Pushpendra Kumar Sharma,
Assistant Public Information Officer Under Secretary (RTI), PMO,
South Block, New Delhi-110011.
1. Full Name of the Applicant : AMRITPAL SINGH NAFRIA
2. Father Name/Spouse Name : DARSHAN SINGH
3. Permanent Address : HOUSE NO. – 303, STREET NO. – 10,
: PREM BASTI, SANGRUR-148001.
4. Correspondence Address : HOUSE NO. – 303, STREET NO. – 10,
: PREM BASTI, SANGRUR-148001.
5. Particulars of the Information Solicited
a) Subject Matter of Information : Status of my Letter
b) The period to which information relates : 30 DAYS.
c) Specific Details of Information required: On 20 December 2014 I sent a letter to
honourable Prime Minister Mr. Narendra Modi, regarding implementation of my research on
equation of motion that are being taught to the Ninth class students in all over India. Now I want
to know all the information regarding the current status of my letter as well as action taken by
your Honorable ministry on my Letter.
d) Whether information is required by Post or in :
person (the actual postal fees shall be included : BY POST
in additional fee in providing the information)
e) In case by Post (ordinary/registered : REGISTERED POST
or speed post)
6. Is this information not made available by
public authority under voluntary disclosure? : YES.
7. Do you agree to pay the required fee? : YES.
8. Have you deposited application fee? : INDIAN POSTAL ORDER / Rs. 10 /
(If Yes, Details of such deposit) 21F 443606
9. Whether belongs to below Poverty Line category? : NO.
(If yes, you furnished the proof of the same with
application?)
Place: SANGRUR.
Date: 19-FEBRUARY-2015 Amritpal Singh Nafria
82. 82
TYPED RTI TO THE PRIME MINISTER
RTI Application Form
FORM ‘A’
See Rule 3(1)
I. D. No……………..
(For Office Use Only)
To
The Public Information Officer/ Shri Vijay Kumar,
Assistant Public Information Officer Room No. 229-C, Shastri Bhawan, C-wing
Dr. Rajendra Prasad Road, New Delhi-110001.
1. Full Name of the Applicant : AMRITPAL SINGH NAFRIA
2. Father Name/Spouse Name : DARSHAN SINGH
3. Permanent Address : HOUSE NO. – 303, STREET NO. – 10,
: PREM BASTI, SANGRUR-148001.
4. Correspondence Address : HOUSE NO. – 303, STREET NO. – 10,
: PREM BASTI, SANGRUR-148001.
5. Particulars of the Information Solicited
a) Subject Matter of Information : Status of my Letter
b) The period to which information relates : 30 DAYS.
c) Specific Details of Information required: On 20 December 2014 I sent a letter to
honourable education minister Smt. Smriti Irani, regarding implementation of my research on
equation of motion that are being taught to the Ninth class students in all over India. Now I want
to know all the information regarding the current status of my letter as well as action taken by
HRD ministry on my Letter.
d) Whether information is required by Post or in :
person (the actual postal fees shall be included : BY POST
in additional fee in providing the information)
e) In case by Post (ordinary/registered : REGISTERED POST
or speed post)
6. Is this information not made available by
public authority under voluntary disclosure? : YES.
7. Do you agree to pay the required fee? : YES.
8. Have you deposited application fee? : INDIAN POSTAL ORDER / Rs. 10 /
(If Yes, Details of such deposit) 21F 443605
9. Whether belongs to below Poverty Line category? : NO.
(If yes, you furnished the proof of the same with
application?)
Place: SANGRUR.
Date: 19-FEBRUARY-2015 Amritpal Singh Nafria
90. 90
TYPED RTI APPLICATION TO CBSE ACADEMIC UNIT
RTI Application Form
FORM ‘A’
See Rule 3(1)
I. D. No……………..
(For Office Use Only)
To
The Public Information Officer/ The PIO, Academic Unit, C.B.S.E.
Assistant Public Information Officer Shiksha Sadan, 17 Rouse Avenue,
New Delhi-110002.
1. Full Name of the Applicant : AMRIT PAL SINGH NAFRIA.
2. Father Name/Spouse Name : DARSHAN SINGH NAFRIA.
3. Permanent Address : HOUSE NO. - 303, STREET NO. - 10,
: PREM BASTI, SANGRUR-148001.
4. Correspondence Address : HOUSE NO. - 303, STREET NO. – 10,
: PREM BASTI, SANGRUR-148001.
5. Particulars of the Information Solicited
a) Subject Matter of Information : EQUATIONS OF MOTION.
b) The period to which information relates : 30 DAYS.
c) Specific Details of Information required: On 11.03.2013, I received your letter in response
to my RTI application. In your reply it was mentioned that third equation is usually attached the
tag of ‘third equation of motion’ because of its usefulness and convenience in solving a wide
variety of useful problems. So, I am humbly requesting you to provide me all the information
regarding usefulness and convenience of third equation of motion in solving a wide variety of
useful problems.
d) Whether information is required by Post or in :
person (the actual postal fees shall be included : BY POST
in additional fee in providing the information)
e) In case by Post (ordinary/registered : REGISTERED POST
or speed post)
6. Is this information not made available by
public authority under voluntary disclosure? : YES.
7. Do you agree to pay the required fee? : YES.
8. Have you deposited application fee? : INDIAN POSTAL ORDER / Rs. 10/
(If Yes, Details of such deposit) : 21F/ 443607
9. Whether belongs to below Poverty Line category? : NO.
(If yes, you furnished the proof of the same with
application?)
Place: Sangrur.
Date: 17-April-2015 Signature of Applicant
98. 98
DOCUMENTS ATTACHED WITH APPEAL - 1
POINTS THAT WERE NOT CLEARED BY NCERT IN THE MEETING
In the meeting they agreed that total equations of motion are five, also on various websites it was clearly
mentioned that total equations of motion are five, some website links were attached with this letter.
Basically, only two equations of motion are enough to solve all the numerical problems of equations of
motion, then why were four equations of motion published and considered three equations as equations of
motion? Is it right to teach students?
The only difference in Second and third equation of motion is that equation ‘S = ut + ½ at2
’ is very useful
to calculate distance covered when final velocity (v) is not given and equation ‘S = (v2
– u2
) ÷ 2a’ is very
useful to calculate distance covered when time (t) is not given. I am saying so because equations
S = ½ (u + v) t & S = vt – ½ at2
have same specialty, i.e. use equation S = ½ (u + v) t to calculate
displacement when acceleration (a) is not given and use equation S = vt – ½ at2
when initial velocity (u) is
not given after that these two equation were not considered as equations of motion.
Third equation of motion is not directly derived from velocity-time graph also they didn’t clear what is
the extra importance of third equation of motion on which it was considered as third equation of motion
and rest of the two equations are not in equation S = ½ (u + v) t & S = vt – ½ at2
?
We have only two option and these are: -
1. If you want to teach all the equations of motion then teach all the five equations to students.
2. If you want to teach sufficient equations of motion then teach only two equations of motion, i.e.
All the problems and numerical regarding equations of motion can be solved with only two equations,
there is no need of third equation of motion. Choose only one equation from both A and B pool;
Rest of the three equations of motion can be used to solve numerical easily in different situations. For e.g.
use Equation ‘S = ut + ½ at2
’ to calculate displacement very easily when final velocity is not given, use
Equation ‘S = (v2
– u2
) ÷ 2a’ calculate displacement very easily when time is not given, use equation
S = vt – ½ at2
calculate displacement very easily when initial velocity is not given and use Equation
S = ½ (u + v) t calculate displacement very easily when acceleration is not given.
Pool-A Pool-B
a = (v –u) ÷ t S = ½ (u + v) t
------------------ S = ut + ½ at2
------------------ S = (v2
– u2
) ÷ 2a
------------------ S = vt – ½ at2
99. 99
DOCUMENTS ATTACHED WITH APPEAL - 2
http://en.wikipedia.org/wiki/Equations_of_motion
http://physicsforidiots.com/physics/dynamics/
http://www.thestudentroom.co.uk/wiki/Revision:Kinematics_-
_Equations_of_Motion_for_Constant_Acceleration
‘MATHEMATICS FOR ENGINEERS’ book by Stephen Lee, Page No. – 29, web-link: -
https://books.google.co.in/books?id=x0J9BgAAQBAJ&pg=PA29&lpg=PA29&dq=s+%3D+vt+-
+1/2+at2&source=bl&ots=1GyID_g1i8&sig=BtNfsUWz2UfPXc9O6yg_oW8igG8&hl=en&sa=X&ei=Tu5mVY
jgD9CxuATzp4CYCQ&ved=0CGMQ6AEwCA
‘ENGG MECHANICS: STAT & DYN’ book by A. Nelson, Page 12.18, web-link: -
https://books.google.co.in/books?id=6yWf4HOTm10C&pg=SA9-
PA138&lpg=SA9-PA138&dq=s+%3D+vt+-
+1/2+at2&source=bl&ots=UxjMyVsE22&sig=GcWWMd5WZnxAVA0X-
kof07OLlug&hl=en&sa=X&ei=kfFmVZjNGpTkuQSquYGQCA&ved=0CBwQ6A
EwADgK#v=onepage&q=s%20%3D%20vt%20-%201%2F2%20at2&f=false
https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=12&cad=rja&uact=8&ved=0CC
MQFjABOAo&url=http%3A%2F%2Fvle.clystvale.org%2Fmod%2Fresource%2Fview.php%3Fid%3D6230&e
i=CvpmVbzhDtjkuQSyw4GQBg&usg=AFQjCNEkRnaAcFIyV1DkTaW7IlBXPcPKSg&sig2=gGTBVOOzYMXyVRj
SMAnLjw&bvm=bv.93990622,d.c2E
https://www.physicsforums.com/threads/problem-on-one-dimentional-motion-bullet-going-through-a-
board.259293/
Time and again, I have warned many those websites which were publishing
my equation S = vt – ½ at2
on their websites, about my copyrights and
consequently some of them had removed the whole webpage given below.
https://www.lakeheadschools.ca/scvi_staff/brecka/Gr11_physics_web/downloadable_content/unit1/text1/
phys11_1_5.pdf
http://www.globalshiksha.com/content/all-physics-formulas-for-10th-grade
http://instruct.tri-c.edu/fgram/web/linear.htm
http://theoreticalphysics.net/Mechanics.htm
http://www.thestudentroom.co.uk/showthread.php?t=15559250