Velocity
•Download as PPTX, PDF•
1 like•245 views
The document defines velocity as the distance travelled per unit time in a given direction. Velocity is a vector quantity with both magnitude and direction. The velocity of a body can change by changing speed, direction, or both. Non-uniform velocity means the speed or direction changes over time. Average velocity is calculated as the total displacement divided by the total time. Several examples are provided to demonstrate calculating velocity using the formula velocity=displacement/time.
Report
Share
Report
Share
Recommended
Velocity
Velocity is the speed and direction of an object's motion. It is calculated as the displacement divided by the time taken, and includes both speed and direction. Some key examples include:
1) A tropical storm was moving at 60 km/h in a northwesterly direction. Its velocity was 60 km/h northwest.
2) Lisa walked 500m in 10 minutes, then jogged back in 5 minutes. Her average speed over the total 1000m distance in 15 minutes was 67 m/min.
3) Nemo swam at 12 km/h and the current was 10 km/h. His velocity was 22 km/h towards his friend's house, and only 2 km/h returning
Motion and force
This document discusses motion, speed, and velocity. It defines motion as a change in an object's position over time. Speed is defined as the rate of change in an object's position, usually measured in meters per second. Velocity differs from speed in that it includes both speed and direction of the object's motion. The document provides examples of calculating average speed by dividing total distance traveled by total time, and defines velocity as displacement divided by time.
2 velocity and acceleration
Velocity describes both the speed and direction of an object, and can change due to changes in speed or direction, such as a car rounding a curve. Acceleration is the rate of change of velocity, and can occur through changes in speed or direction - positive acceleration occurs when acceleration is in the same direction as velocity, causing an increase in speed, while negative acceleration or deceleration occurs when acceleration is in the opposite direction of velocity, causing a decrease in speed. Acceleration depends on both the change in velocity over time - the time interval is the period over which the change in velocity took place.
Constant rate
- The document discusses constant rate problems in various contexts like mowing lawns, painting houses, and water flowing from a faucet.
- It defines average rate as the rate of change over a specific time interval, while constant rate assumes the average rate stays the same over any time interval.
- Examples show setting up constant rate problems by finding the rate of change over a known time interval, then using that rate in an equation to calculate values over other time intervals. Tables and graphs are used to organize constant rate data.
Lecture 14 related rates - section 4.1
This document contains examples of solving related rates problems. The first example involves calculating the rate of increase of the radius of a spherical balloon as it inflates at a rate of 100 cm3/s. When the diameter is 50 cm, the radius is increasing at a rate of approximately 0.0127 cm/s. The document provides guidance on setting up related rates problems, including drawing diagrams, identifying known and unknown variables, relating variables through equations, and differentiating to solve for the unknown rate. Two additional examples involve calculating rates of change for a filling water tank and a sliding ladder.
2.6 Related Rates
This document defines and provides examples of related rate problems. Related rate problems involve calculating the rates of change of two or more related variables with respect to time. The document outlines the steps to solve related rate problems: 1) identify changing quantities, 2) write an equation relating the quantities, 3) differentiate both sides with respect to time, 4) solve for the required quantity and substitute known values. Examples include calculating the rate of change of a dog's circular puddle area, a melting snowball's radius, the top of a slipping ladder, and the height of a conical sand pile.
Science 7 - Describing Motion
This document defines and explains key concepts related to motion, including:
- Motion is defined as a change in position over time. A point of reference is used to measure an object's changing position.
- Displacement refers to the straight line distance and direction between two positions, while distance is the total path traveled.
- Speed is defined as distance divided by time and can be measured in units like km/h or m/s. Speed with direction is called velocity.
- Instantaneous speed is an object's speed at a moment in time, which may vary, while average speed represents the speed over the entire journey. Constant speed means the instantaneous speed does not change.
- A
Momentum
The document discusses momentum and how to calculate it using the formula momentum (p) equals mass (m) multiplied by velocity (v). It provides examples of calculating momentum for various objects with different masses and velocities, such as a trolley, car, and lorry. It also asks questions about determining momentum and which object has the least momentum based on given mass and velocity values.
Recommended
Velocity
Velocity is the speed and direction of an object's motion. It is calculated as the displacement divided by the time taken, and includes both speed and direction. Some key examples include:
1) A tropical storm was moving at 60 km/h in a northwesterly direction. Its velocity was 60 km/h northwest.
2) Lisa walked 500m in 10 minutes, then jogged back in 5 minutes. Her average speed over the total 1000m distance in 15 minutes was 67 m/min.
3) Nemo swam at 12 km/h and the current was 10 km/h. His velocity was 22 km/h towards his friend's house, and only 2 km/h returning
Motion and force
This document discusses motion, speed, and velocity. It defines motion as a change in an object's position over time. Speed is defined as the rate of change in an object's position, usually measured in meters per second. Velocity differs from speed in that it includes both speed and direction of the object's motion. The document provides examples of calculating average speed by dividing total distance traveled by total time, and defines velocity as displacement divided by time.
2 velocity and acceleration
Velocity describes both the speed and direction of an object, and can change due to changes in speed or direction, such as a car rounding a curve. Acceleration is the rate of change of velocity, and can occur through changes in speed or direction - positive acceleration occurs when acceleration is in the same direction as velocity, causing an increase in speed, while negative acceleration or deceleration occurs when acceleration is in the opposite direction of velocity, causing a decrease in speed. Acceleration depends on both the change in velocity over time - the time interval is the period over which the change in velocity took place.
Constant rate
- The document discusses constant rate problems in various contexts like mowing lawns, painting houses, and water flowing from a faucet.
- It defines average rate as the rate of change over a specific time interval, while constant rate assumes the average rate stays the same over any time interval.
- Examples show setting up constant rate problems by finding the rate of change over a known time interval, then using that rate in an equation to calculate values over other time intervals. Tables and graphs are used to organize constant rate data.
Lecture 14 related rates - section 4.1
This document contains examples of solving related rates problems. The first example involves calculating the rate of increase of the radius of a spherical balloon as it inflates at a rate of 100 cm3/s. When the diameter is 50 cm, the radius is increasing at a rate of approximately 0.0127 cm/s. The document provides guidance on setting up related rates problems, including drawing diagrams, identifying known and unknown variables, relating variables through equations, and differentiating to solve for the unknown rate. Two additional examples involve calculating rates of change for a filling water tank and a sliding ladder.
2.6 Related Rates
This document defines and provides examples of related rate problems. Related rate problems involve calculating the rates of change of two or more related variables with respect to time. The document outlines the steps to solve related rate problems: 1) identify changing quantities, 2) write an equation relating the quantities, 3) differentiate both sides with respect to time, 4) solve for the required quantity and substitute known values. Examples include calculating the rate of change of a dog's circular puddle area, a melting snowball's radius, the top of a slipping ladder, and the height of a conical sand pile.
Science 7 - Describing Motion
This document defines and explains key concepts related to motion, including:
- Motion is defined as a change in position over time. A point of reference is used to measure an object's changing position.
- Displacement refers to the straight line distance and direction between two positions, while distance is the total path traveled.
- Speed is defined as distance divided by time and can be measured in units like km/h or m/s. Speed with direction is called velocity.
- Instantaneous speed is an object's speed at a moment in time, which may vary, while average speed represents the speed over the entire journey. Constant speed means the instantaneous speed does not change.
- A
Momentum
The document discusses momentum and how to calculate it using the formula momentum (p) equals mass (m) multiplied by velocity (v). It provides examples of calculating momentum for various objects with different masses and velocities, such as a trolley, car, and lorry. It also asks questions about determining momentum and which object has the least momentum based on given mass and velocity values.
2 Momentum
The document discusses momentum and the principle of conservation of momentum. It defines momentum as mass times velocity (p=mv) and states that the principle of conservation of momentum means that in the absence of external forces, the total initial momentum of a system will equal the total final momentum. It provides examples of collisions calculating the initial and final momentum to demonstrate that momentum is conserved.
Physics on the Road - Lesson 4
This document discusses velocity and how to calculate it. It provides examples of:
1) Converting between different units of velocity like km/day, km/hr, km/min, km/s, and km/ms.
2) Calculating the resultant velocity when vectors are added, such as an airplane's velocity in tailwinds, headwinds, and crosswinds.
3) Solving word problems involving velocity and river currents, like calculating how fast a boat travels when crossing a river with a running current.
Physical Science - 3rd Law and Momentum
The document discusses Newton's Third Law and how it applies to examples of action-reaction force pairs such as a hammer and nail. It then covers the concepts of momentum, calculating momentum, conservation of momentum, and elastic versus inelastic collisions. Examples are provided to illustrate these physics principles around forces, momentum, and collisions.
Momentum Intro
The document provides information about momentum and how to decrease it through force applied over time (impulse). It defines momentum as mass times velocity and discusses examples like cars and football collisions. It explains that decreasing the force of impact involves extending the time of impact to reduce deceleration. Padding, airbags, nets, and flexible surfaces all work to increase impact time and decrease force.
Impulse
Objectives is to Define impulse, Describe and show the relation between impulse and momentum and Calculate Impulse.
Motion
This document contains definitions and examples related to motion concepts including speed, average speed, velocity, and acceleration. It defines average speed as total distance traveled divided by total time. It provides an example of calculating average speed when speeds vary throughout a trip. It also defines velocity as a measure of both speed and direction of motion. Velocity is defined as distance divided by time. The document provides examples of calculating acceleration from changes in speed over time.
Learning object 1 travelling waves
The document describes the movement of travelling waves through a medium. It defines key concepts such as pulses, displacement, and speed. It provides an analogy of a wave moving through a crowd at a sports game. The key equation given relates the displacement of a point on the medium to the distance and time: D(x,t) = D(x-vt). It then works through an example problem applying this equation to find the displacement of a marked point on a rope at a given time, as well as determining when the maximum displacement occurs for a different point. Finally, it discusses how the speed of a wave depends on the tension and linear mass density of the medium.
Momentum
Momentum is defined by the equation p=mv, where p is momentum, m is mass, and v is velocity. It represents a body's resistance to changes in its motion based on its mass and velocity. Momentum can be transferred between objects during collisions, with the total momentum of the system remaining the same. Solving momentum problems involves applying the conservation of momentum principle to calculate changes in velocity when momentum is transferred, such as when a moving ball is caught by a person.
4 wave speed
This document discusses wave speed and the relationship between speed, frequency, and wavelength of waves. It states that the speed of a wave is equal to the frequency multiplied by the wavelength, and provides the equation v = fλ. It then gives examples of using this equation to calculate speed, frequency, or wavelength when two of the three values are known.
Momentum tmid
Momentum is a measure of how difficult it is to stop a moving object. It is defined by the equation momentum (p) equals mass (m) times velocity (v). In a closed system where no external forces act, the total momentum before an event like a collision will equal the total momentum after the event, according to the principle of conservation of momentum.
Motion in physics
Motion is defined as the change in position of an object over time. There are different types of motion including translational, rotational, random, and oscillatory. Relative motion describes the velocity of one object compared to another. Force is what causes motion, including contact forces like pushes and pulls, and field forces like gravity and magnetism. Circular motion involves constant or changing rotation around a central point and can be described using formulas involving parameters like angular velocity, linear speed, and centripetal force. Centrifugal force acts outwardly away from the center of rotation.
Motion
This document defines and explains key concepts related to motion, including:
1) Kinematics describes motion without considering causes. Motion is a change in position over time. Rectilinear motion describes straight-line movement.
2) There are two types of motion - natural motion where an object moves to its natural place, and violent motion caused by forces.
3) Distance is length travelled, while displacement is the shortest distance between positions. Speed is distance over time. Velocity includes direction. Forces can change motion by pushing or pulling.
Conversion factor
This document provides conversion factors between common units of length, mass, and derived quantities like speed and density. It lists equivalents such as 1 cm = 0.3937 inches, 1 kg = 2.2 pounds, and defines derived quantities as those with units built from fundamental ones. Examples given are definitions of speed as distance over time, volume as space occupied, and density as mass over volume. The document also distinguishes between precision as closeness of readings to each other and accuracy as closeness to accepted values.
Physics
Linear momentum is a property of moving objects that describes how difficult it is to stop the object or change its velocity. It is calculated as the product of an object's mass and velocity (p=mv), so it increases with greater mass or velocity. Momentum is a vector quantity that resists changes, and comparing the momentum of a car and motorcycle traveling at different speeds and masses shows that the car has more momentum even though it is moving slower due to its greater mass. Impulse is a measure of the change in an object's momentum caused by a force over time.
Momentum
Momentum is a characteristic of moving objects related to its mass and velocity. It is calculated by multiplying mass and velocity, with units of kg*m/s. An object's momentum is in the direction of its velocity, and greater momentum means it is harder to stop the object. Both greater mass and velocity result in higher momentum. The total momentum in a system is conserved during interactions and collisions according to the law of conservation of momentum.
04-17-08 - Circular Motion
Uniform circular motion describes an object moving at a constant speed in a circular path, where its velocity changes direction but not magnitude. While the speed is constant, the object is accelerating because its velocity and direction are changing. The acceleration is always directed toward the center and is known as centripetal acceleration. Key equations relate the centripetal acceleration, velocity, radius, and period of an object in circular motion.
Velocity
The document defines velocity as the speed and direction of an object's motion. It provides examples of calculating velocity from speed and direction. It also discusses concepts like constant versus changing velocity, and combining velocities such as a boat moving downstream in a river. Several word problems are presented that require calculating velocity using change in distance over time along with direction of motion.
ALL-ABOUT-MOTION (3).pptx
This document discusses key concepts of motion including:
1. It defines motion as a continuous change in position over time and differentiates between speed, velocity, and acceleration.
2. It explains that mechanics involves the study of motion and is divided into kinematics (description of motion) and dynamics (forces that produce motion).
3. It provides equations for calculating average speed, velocity, and acceleration and examples of how to use these equations to solve motion problems.
mechanics
Mechanics deals with forces and motion, including kinetics, statics, and kinematics. Vector quantities like displacement and velocity have both magnitude and direction, while scalar quantities like mass and time only have magnitude. Mechanics also examines concepts like average speed, average velocity, acceleration, energy, heat, and the conservation of energy. Forces cause motion or changes in motion based on Newton's laws of motion.
speed and velocity
This document discusses speed, velocity, distance, and displacement. It defines these terms and distinguishes between them. Speed is a scalar quantity referring to the total distance traveled over time, while velocity is a vector quantity that includes direction of motion. Distance is the total length of travel regardless of direction, while displacement refers to the distance moved in a particular direction. Examples are provided to illustrate these concepts, including a discussion of constant speed but changing velocity when moving in a circle. Graphs of distance over time are also used to represent speed.
grade 12 distance and displacement.pptx
Distance is a scalar quantity that refers to how far an object has traveled, regardless of direction. Displacement is a vector quantity referring to an object's overall change in position, including both distance and direction traveled. Velocity is a vector quantity that includes both an object's speed and the direction of motion, while speed is a scalar quantity referring only to the rate of travel. Acceleration refers to any change in an object's velocity, whether in magnitude or direction over time.
Linear motion pp
The document discusses concepts related to motion including speed, velocity, acceleration, and free fall. It defines key terms, provides examples of calculating speed, acceleration, and distance using formulas like the relationship between velocity and acceleration under gravity. Examples include calculating the impact speed of cars moving in the same direction and the acceleration and distance traveled by objects in free fall.
More Related Content
What's hot
2 Momentum
The document discusses momentum and the principle of conservation of momentum. It defines momentum as mass times velocity (p=mv) and states that the principle of conservation of momentum means that in the absence of external forces, the total initial momentum of a system will equal the total final momentum. It provides examples of collisions calculating the initial and final momentum to demonstrate that momentum is conserved.
Physics on the Road - Lesson 4
This document discusses velocity and how to calculate it. It provides examples of:
1) Converting between different units of velocity like km/day, km/hr, km/min, km/s, and km/ms.
2) Calculating the resultant velocity when vectors are added, such as an airplane's velocity in tailwinds, headwinds, and crosswinds.
3) Solving word problems involving velocity and river currents, like calculating how fast a boat travels when crossing a river with a running current.
Physical Science - 3rd Law and Momentum
The document discusses Newton's Third Law and how it applies to examples of action-reaction force pairs such as a hammer and nail. It then covers the concepts of momentum, calculating momentum, conservation of momentum, and elastic versus inelastic collisions. Examples are provided to illustrate these physics principles around forces, momentum, and collisions.
Momentum Intro
The document provides information about momentum and how to decrease it through force applied over time (impulse). It defines momentum as mass times velocity and discusses examples like cars and football collisions. It explains that decreasing the force of impact involves extending the time of impact to reduce deceleration. Padding, airbags, nets, and flexible surfaces all work to increase impact time and decrease force.
Impulse
Objectives is to Define impulse, Describe and show the relation between impulse and momentum and Calculate Impulse.
Motion
This document contains definitions and examples related to motion concepts including speed, average speed, velocity, and acceleration. It defines average speed as total distance traveled divided by total time. It provides an example of calculating average speed when speeds vary throughout a trip. It also defines velocity as a measure of both speed and direction of motion. Velocity is defined as distance divided by time. The document provides examples of calculating acceleration from changes in speed over time.
Learning object 1 travelling waves
The document describes the movement of travelling waves through a medium. It defines key concepts such as pulses, displacement, and speed. It provides an analogy of a wave moving through a crowd at a sports game. The key equation given relates the displacement of a point on the medium to the distance and time: D(x,t) = D(x-vt). It then works through an example problem applying this equation to find the displacement of a marked point on a rope at a given time, as well as determining when the maximum displacement occurs for a different point. Finally, it discusses how the speed of a wave depends on the tension and linear mass density of the medium.
Momentum
Momentum is defined by the equation p=mv, where p is momentum, m is mass, and v is velocity. It represents a body's resistance to changes in its motion based on its mass and velocity. Momentum can be transferred between objects during collisions, with the total momentum of the system remaining the same. Solving momentum problems involves applying the conservation of momentum principle to calculate changes in velocity when momentum is transferred, such as when a moving ball is caught by a person.
4 wave speed
This document discusses wave speed and the relationship between speed, frequency, and wavelength of waves. It states that the speed of a wave is equal to the frequency multiplied by the wavelength, and provides the equation v = fλ. It then gives examples of using this equation to calculate speed, frequency, or wavelength when two of the three values are known.
Momentum tmid
Momentum is a measure of how difficult it is to stop a moving object. It is defined by the equation momentum (p) equals mass (m) times velocity (v). In a closed system where no external forces act, the total momentum before an event like a collision will equal the total momentum after the event, according to the principle of conservation of momentum.
Motion in physics
Motion is defined as the change in position of an object over time. There are different types of motion including translational, rotational, random, and oscillatory. Relative motion describes the velocity of one object compared to another. Force is what causes motion, including contact forces like pushes and pulls, and field forces like gravity and magnetism. Circular motion involves constant or changing rotation around a central point and can be described using formulas involving parameters like angular velocity, linear speed, and centripetal force. Centrifugal force acts outwardly away from the center of rotation.
Motion
This document defines and explains key concepts related to motion, including:
1) Kinematics describes motion without considering causes. Motion is a change in position over time. Rectilinear motion describes straight-line movement.
2) There are two types of motion - natural motion where an object moves to its natural place, and violent motion caused by forces.
3) Distance is length travelled, while displacement is the shortest distance between positions. Speed is distance over time. Velocity includes direction. Forces can change motion by pushing or pulling.
Conversion factor
This document provides conversion factors between common units of length, mass, and derived quantities like speed and density. It lists equivalents such as 1 cm = 0.3937 inches, 1 kg = 2.2 pounds, and defines derived quantities as those with units built from fundamental ones. Examples given are definitions of speed as distance over time, volume as space occupied, and density as mass over volume. The document also distinguishes between precision as closeness of readings to each other and accuracy as closeness to accepted values.
Physics
Linear momentum is a property of moving objects that describes how difficult it is to stop the object or change its velocity. It is calculated as the product of an object's mass and velocity (p=mv), so it increases with greater mass or velocity. Momentum is a vector quantity that resists changes, and comparing the momentum of a car and motorcycle traveling at different speeds and masses shows that the car has more momentum even though it is moving slower due to its greater mass. Impulse is a measure of the change in an object's momentum caused by a force over time.
Momentum
Momentum is a characteristic of moving objects related to its mass and velocity. It is calculated by multiplying mass and velocity, with units of kg*m/s. An object's momentum is in the direction of its velocity, and greater momentum means it is harder to stop the object. Both greater mass and velocity result in higher momentum. The total momentum in a system is conserved during interactions and collisions according to the law of conservation of momentum.
04-17-08 - Circular Motion
Uniform circular motion describes an object moving at a constant speed in a circular path, where its velocity changes direction but not magnitude. While the speed is constant, the object is accelerating because its velocity and direction are changing. The acceleration is always directed toward the center and is known as centripetal acceleration. Key equations relate the centripetal acceleration, velocity, radius, and period of an object in circular motion.
What's hot (16)
Similar to Velocity
Velocity
The document defines velocity as the speed and direction of an object's motion. It provides examples of calculating velocity from speed and direction. It also discusses concepts like constant versus changing velocity, and combining velocities such as a boat moving downstream in a river. Several word problems are presented that require calculating velocity using change in distance over time along with direction of motion.
ALL-ABOUT-MOTION (3).pptx
This document discusses key concepts of motion including:
1. It defines motion as a continuous change in position over time and differentiates between speed, velocity, and acceleration.
2. It explains that mechanics involves the study of motion and is divided into kinematics (description of motion) and dynamics (forces that produce motion).
3. It provides equations for calculating average speed, velocity, and acceleration and examples of how to use these equations to solve motion problems.
mechanics
Mechanics deals with forces and motion, including kinetics, statics, and kinematics. Vector quantities like displacement and velocity have both magnitude and direction, while scalar quantities like mass and time only have magnitude. Mechanics also examines concepts like average speed, average velocity, acceleration, energy, heat, and the conservation of energy. Forces cause motion or changes in motion based on Newton's laws of motion.
speed and velocity
This document discusses speed, velocity, distance, and displacement. It defines these terms and distinguishes between them. Speed is a scalar quantity referring to the total distance traveled over time, while velocity is a vector quantity that includes direction of motion. Distance is the total length of travel regardless of direction, while displacement refers to the distance moved in a particular direction. Examples are provided to illustrate these concepts, including a discussion of constant speed but changing velocity when moving in a circle. Graphs of distance over time are also used to represent speed.
grade 12 distance and displacement.pptx
Distance is a scalar quantity that refers to how far an object has traveled, regardless of direction. Displacement is a vector quantity referring to an object's overall change in position, including both distance and direction traveled. Velocity is a vector quantity that includes both an object's speed and the direction of motion, while speed is a scalar quantity referring only to the rate of travel. Acceleration refers to any change in an object's velocity, whether in magnitude or direction over time.
Linear motion pp
The document discusses concepts related to motion including speed, velocity, acceleration, and free fall. It defines key terms, provides examples of calculating speed, acceleration, and distance using formulas like the relationship between velocity and acceleration under gravity. Examples include calculating the impact speed of cars moving in the same direction and the acceleration and distance traveled by objects in free fall.
Third Quarter (3rd) Topics in Science 7!
This is a unified melc-based powerpoint presentation in Science 7. If you want to avail the powerpoint please contact me on my facebook account: Jady Claire Jackson Lullegao
G7 Science Q3- Week 1_2- Force and Motion Standards.ppt
1) The document discusses force and motion standards related to determining the relationship between velocity and acceleration, and the effect of balanced and unbalanced forces on an object.
2) It defines key terms related to motion including distance, displacement, speed, velocity, and acceleration. Distance refers to how far an object travels regardless of direction, while displacement takes direction into account. Speed is how fast something moves, while velocity includes both speed and direction.
3) Acceleration is defined as the rate of change of velocity, whether that be a change in speed, direction, or both. Equations for calculating speed, velocity and acceleration from distance, time and other variables are provided.
law of motion PPT.pptx
Motion can be described by distance, displacement, speed, velocity, and acceleration. Distance is the total path travelled, while displacement is the straight line distance between initial and final positions. Speed is the distance travelled per unit time and does not include direction. Velocity includes both speed and direction. Acceleration is the rate of change of velocity with respect to time. Motion can be represented graphically using distance-time graphs. The three equations of motion relate displacement, initial/final velocities, time, and acceleration for objects experiencing uniform acceleration. Circular motion involves constant speed but changing direction along a circular path.
Motion Class 9 .pdf
Science!
Physics
Notes on the topic - 'MOTION'. For Class:- 9th
{with ncert examples}
Created By - 'Neha Rohtagi'.
I hope that you will found this presentation useful and it will help you out for your concept understanding.
Thank You!
Please give feedbacks and suggestions to get presentations on more interesting topics.
Motion in a straight line
This document discusses motion in a straight line. It defines one-dimensional motion as motion along a straight line where only one coordinate changes over time, such as a block moving along a track. It also discusses displacement, distance, speed, velocity, uniform motion, and the three equations of motion - relating velocity, acceleration, time, displacement, and initial/final velocities. The equations are derived using calculus, integrating expressions for acceleration, velocity, and position as derivatives of each other with respect to time.
Acceleration & Momentum
1. The document discusses concepts related to motion including speed, velocity, acceleration, momentum, and conservation of momentum. It provides definitions and formulas for calculating these values.
2. Examples are given to demonstrate how to calculate speed, relative velocity between two objects, acceleration, and momentum. Factors like mass, velocity, and time are considered.
3. The conservation of momentum is explained as the principle that the total momentum of a system remains constant if no external forces act on it. Collisions are used to illustrate how momentum can be transferred between objects.
Speed Velocity and Acceleration.pptx
This document discusses speed, velocity, and acceleration. It defines key terms and concepts:
- Speed is the distance an object travels over time and is a scalar quantity, while velocity includes both speed and direction of motion, making it a vector quantity.
- Acceleration is the rate of change of velocity with time. It can be calculated by taking the change in velocity over the change in time. Acceleration is a vector quantity that can be positive or negative depending on direction.
unit3-180705055315.pdf
1. The document discusses motion in one dimension, including definitions of key terms like distance, displacement, speed, velocity, average speed, instantaneous speed, and acceleration.
2. Formulas for calculating speed, velocity, and acceleration are provided along with examples of applying the formulas to problems involving cars, planes, skateboarders and sailboats.
3. Review questions are included to test understanding of motion concepts like how acceleration is a change in velocity over time.
Motion in one dimension
1) The document discusses motion in one dimension, including definitions of terms like distance, displacement, speed, velocity, average speed, instantaneous speed, and acceleration.
2) Formulas for calculating speed, velocity, and acceleration are provided along with examples of applying the formulas to problems involving cars, planes, skateboarders, and sailboats.
3) Review questions are included to test understanding of key concepts like the difference between speed and velocity, and the relationship between changes in velocity and acceleration.
SCIECE FOR GRADE 5 FINDING SPEED DISTANCE AND TIME
1) The document discusses motion, speed, distance, and other concepts related to describing the movement of objects. It provides definitions and formulas for calculating speed, distance, time, and velocity.
2) Examples are given to demonstrate how to use the formulas to calculate speed, distance, time, and velocity based on values provided for two or three of the variables.
3) Review questions are included at the end to test understanding of the concepts and formulas covered.
Motion_speed_acceleration_velocity_and force.pdf
Motion is defined as an object changing position or place. Speed is the distance traveled over a period of time. Velocity includes both speed and direction of motion. Acceleration is the rate of change of velocity, whether in magnitude or direction. Instantaneous speed refers to the speed at a particular point in time, while average speed is the total distance divided by the total time. Graphs of distance over time depict motion, with speed shown as the slope of the line and acceleration as the change in slope.
sanchitppt-161014144249 (1).pdf
This document describes various concepts related to motion including:
1) Motion is defined as a change in position of an object over time, and can be described by distance or displacement.
2) Uniform and non-uniform motion are defined based on whether distances traveled are equal or unequal over equal time intervals.
3) Speed, velocity, average speed, average velocity, acceleration, and circular motion are defined and formulas relating them are derived.
Examples are provided to illustrate key concepts like uniform and non-uniform motion, speed vs velocity, and solving related problems.
sanchitppt-161014144249.pdf
This document describes various concepts related to motion including:
1) Motion is defined as a change in position of a body over time, and can be described by distance or displacement.
2) Uniform and non-uniform motion are defined based on whether a body travels equal or unequal distances in equal time intervals.
3) Speed, velocity, average speed, average velocity, acceleration, and equations of motion relating these quantities are explained. Distance-time graphs are used to represent uniform motion.
Motion for class 9th
This document describes various concepts related to motion including:
1) Motion is defined as a change in position of an object over time, and can be described by distance or displacement.
2) Uniform and non-uniform motion are defined based on whether distances traveled are equal or unequal over equal time intervals.
3) Speed, velocity, average speed, average velocity, acceleration, and circular motion are defined and the relationships between related concepts like displacement, time, speed, and velocity are described.
3) Formulas for acceleration, average speed, and the three equations of motion relating displacement, time, initial velocity, final velocity, and acceleration are derived.
Similar to Velocity (20)
G7 Science Q3- Week 1_2- Force and Motion Standards.ppt
G7 Science Q3- Week 1_2- Force and Motion Standards.ppt
SCIECE FOR GRADE 5 FINDING SPEED DISTANCE AND TIME
SCIECE FOR GRADE 5 FINDING SPEED DISTANCE AND TIME
More from Bhitesh Arora
Tipu Sultan.pptx
Tipu Sultan was the ruler of the Kingdom of Mysore in southern India from 1782 until his death in 1799. He fought four wars against the British East India Company in an effort to preserve his kingdom's independence. In the Fourth Anglo-Mysore War, the British led a coalition of over 50,000 troops against Tipu Sultan's forces and besieged his capital city of Seringapatam. On May 4, 1799, Tipu Sultan was killed while defending a breach in the city walls, and Seringapatam fell to the British, ending Mysore's independence. Though unsuccessful, Tipu Sultan is still remembered today as a brilliant military leader and freedom fighter who resisted
Transportation of materials in plants and animals
Plants and animals have transport systems to distribute nutrients and remove waste. In plants, vascular bundles transport water and minerals through xylem and food through phloem. In animals, the circulatory system transports blood through arteries, veins and capillaries. The human circulatory system includes the heart, blood vessels and blood, with the heart pumping blood throughout the body and blood carrying oxygen, nutrients and waste. Both plants and animals have excretory systems to remove metabolic waste.
Area and perimeter
A rectangle, square, triangle and parallelogram are defined by their sides and angles. A rectangle has opposite sides equal and 90 degree angles, a square has all sides equal and 90 degree angles, a triangle has three sides and its perimeter equals the sum of the three side lengths, and a parallelogram is bounded by four sides. A circle is a closed shape where all points are a fixed distance from the center point.
Work/life balance and smartphones: Can a smartphone make a difference?
Smartphone usage amongst the general public has risen dramatically only in the last 2 to 5 years. With the introduction of the smartphone, users have found many benefits, such as access to apps for news, public service information, entertainment, and constant access to their email, social networking sites, and the internet. This project aims to examine the effect this has had on working people and their ability to maintain a healthy work-life balance.
The project presents a brief history of the development of the smartphone and its subsequent integration into workers' everyday lives. It also presents some theories on what constitutes a healthy work-life balance alongside some research into existing literature to determine whether people feel their smartphones have enhanced or presented challenges in their ability to achieve this.
The project asserts that the smartphone has afforded both individuals and organizations great opportunities to improve performance and service in their workplace environments.
However, both organizations and some individuals have yet to establish acceptable boundaries concerning the use of smartphones for work-based activities outside of legal working hours.
At last, we’ll get to know whether smartphones can help in maintaining the balance between work and life.
DIGESTION in mouth, esophagus and stomach...
The document summarizes the process of digestion from the mouth to the stomach. In the mouth, teeth break down food and tongue mixes it with saliva containing amylase to break down starch. The epiglottis prevents food from entering the trachea. Saliva is secreted from glands under the tongue and back of the mouth and contains amylase to break down starch into sugars. The esophagus is about 10 inches long and uses peristalsis to move food to the stomach. The stomach is J-shaped and stores food, breaking it down into tiny pieces using digestive juices containing enzymes to break down proteins and lipids. The acid in the stomach kills bacteria.
Nuclear energy
Nuclear energy is the energy stored in the nucleus of an atom. It is released through nuclear reactions like fission and fusion. Nuclear fission is the splitting of the nucleus of an atom, releasing energy. India aims to supply 25% of its electricity from nuclear power by 2050 and has expertise in fast reactors and thorium fuel cycles. While nuclear power produces low carbon emissions, issues remain around radioactive waste disposal and risks of accidents.
Food adulteration
Food comes from plants or animals and provides energy and nutrition. Most food originates from plants, whether directly from plants or indirectly by feeding plants to animals used for food. There are two main food sources: plants and animals. Plants and plant parts are commonly eaten as food, with around 2,000 cultivated species. Animals are used directly for meat or indirectly for products like milk. In Bangladesh, common food adulterations include adding water to milk, vanaspati to ghee, stones to rice or flour, and cheaper oils to edible oils. Sellers adulterate for profit, increased production, preservation, and making food appear fresher.
Synopsis on apache open office
Apache OpenOffice is an open-source office suite that includes a word processor, spreadsheet, presentation application, drawing application, formula editor, and database application. It can open a wide variety of file formats, including those from Microsoft Office. Apache OpenOffice is developed for Linux, Mac OS, and Windows and is distributed under the Apache License. Recent versions have added features like annotations on text ranges and improved support for 3D charts.
Symptoms of tuberculosis
Symptoms of tuberculosis include fever, cough, sweating at night, weight loss, blood stained sputum, and loss of appetite. Tuberculosis bacteria can grow in different parts of the body, leading to variable symptoms depending on the location. Common tuberculosis symptoms are fever, cough, and night sweats.
Poster on presentation apps...
The document discusses several tools for creating interactive presentations including BiteSlide, 9SLIDE, NetClick, SlideShare, TotSplash, and HelloSlide. BiteSlide allows creating presentations with all types of media and an educational portal for teachers and students. 9SLIDE and NetClick enable adding video/audio narration or engaging audiences through interactive slideshows. SlideShare is a popular site for uploading and sharing presentations securely. TotSplash is used for brainstorming and embedding presentations. HelloSlide allows adding narration by typing text.
digestion in mouth, esophagus and stomach...
The document summarizes digestion in the mouth, esophagus, and stomach. In the mouth, teeth break down food and tongue mixes it with saliva containing amylase to break down starch. The epiglottis prevents food from entering the trachea. In the esophagus, mucus is secreted and peristalsis moves food to the stomach. The stomach is J-shaped and stores food, breaking it down with enzymes and acid into chyme before it passes into the small intestine.
Nephron in excreatory system
The nephron begins with Bowman's capsules surrounding glomerules, which are balls of capillaries from renal arteries. The efferent arteriole from the glomerules forms peritubular capillaries where reabsorption occurs. These capillaries later join to form renal veins. The nephron removes wastes from blood through specialized tubules and capillaries, and reabsorbs necessary substances like sodium, potassium, and phosphorus to maintain balance.
human blood system and disorders,,,
Platelets in the blood stick to collagen fibers in the wall of an injured blood vessel, forming a platelet plug that fills small tears. This platelet plug initiates a complex chain of clotting factor reactions to form a clot, involving 12 clotting factors and enzyme catalysis. The mechanism of clot formation is complex.
More from Bhitesh Arora (13)
Work/life balance and smartphones: Can a smartphone make a difference?
Work/life balance and smartphones: Can a smartphone make a difference?
Recently uploaded
The debris of the ‘last major merger’ is dynamically young
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.
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
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.
Micronuclei test.M.sc.zoology.fisheries.
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
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.
8.Isolation of pure cultures and preservation of cultures.pdf
Isolation of pure culture, its various method.
The binding of cosmological structures by massless topological defects
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
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.
11.1 Role of physical biological in deterioration of grains.pdf
Storagedeteriorationisanyformoflossinquantityandqualityofbio-materials.
Themajorcausesofdeteriorationinstorage
•Physical
•Biological
•Mechanical
•Chemical
Storageonlypreservesquality.Itneverimprovesquality.
Itisadvisabletostartstoragewithqualityfoodproduct.Productwithinitialpoorqualityquicklydepreciates
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
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 cost of acquiring information by natural selection
This is a short talk that I gave at the Banff International Research Station workshop on Modeling and Theory in Population Biology. The idea is to try to understand how the burden of natural selection relates to the amount of information that selection puts into the genome.
It's based on the first part of this research paper:
The cost of information acquisition by natural selection
Ryan Seamus McGee, Olivia Kosterlitz, Artem Kaznatcheev, Benjamin Kerr, Carl T. Bergstrom
bioRxiv 2022.07.02.498577; doi: https://doi.org/10.1101/2022.07.02.498577
Authoring a personal GPT for your research and practice: How we created the Q...
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.
在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Recently uploaded (20)
The debris of the ‘last major merger’ is dynamically young
The debris of the ‘last major merger’ is dynamically young
GBSN - Biochemistry (Unit 6) Chemistry of Proteins
GBSN - Biochemistry (Unit 6) Chemistry of Proteins
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
8.Isolation of pure cultures and preservation of cultures.pdf
8.Isolation of pure cultures and preservation of cultures.pdf
The binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defects
Basics of crystallography, crystal systems, classes and different forms
Basics of crystallography, crystal systems, classes and different forms
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
11.1 Role of physical biological in deterioration of grains.pdf
11.1 Role of physical biological in deterioration of grains.pdf
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
The cost of acquiring information by natural selection
The cost of acquiring information by natural selection
Authoring a personal GPT for your research and practice: How we created the Q...
Authoring a personal GPT for your research and practice: How we created the Q...
Velocity
- 2. Velocity of the body is the distance travelled in a given direction per unit time. In other words speed in a given direction tells the velocity of the body. Velocity is the vector quantity having both magnitude as well as direction. S.I unit of velocity is M/sec.
- 5. The velocity of the body can be changed in any one of the following 3 ways:- By changing speed of the body. By changing the direction of motion of the body. By changing both , speed and distance of motion. Velocity of the body is said to be non-uniform when it covers unequal distances in a particular directions on equal interval of time or direction of motion of body changes.
- 6. When velocity of the body is changing at the uniform rate over the period of time then average velocity of the body for this body is arithmetic mean of initial and final velocity. = initial velocity + final velocity 2 Vav =U + V 2 Vav= average velocity U= initial velocity V= final velocity
- 9. How fast will this ball move? What factors may affect its speed?
- 10. Rowing speed = 16 km/hr River speed (downstream) = 10 km/hr Combined velocity: 26 km/hr V1(Boat) = 16 km/hr V2 (river) = 10 km/hr
- 11. What is the velocity if you are moving upstream? Combined velocity: (V1) 16 km/hr – (V2) 10 km/hr = (CV) 6 km/hr
- 13. 1. A tropical disturbance spotted east of the Philippines was moving at 60 km per hour at a Northwesterly direction and having maximum sustained winds of 150 km/h? What is the storm’s velocity? Given: S= 60km/h T= 10 sec dir.= northwest 1. Formula= V= d/t with direction 2.Work/Answer= V= 60km/h Northwest
- 14. 2. A runner moving eastward covers a distance of a 100 meters in 10 seconds. What is his velocity? Given: D= 100 m T= 10s dir.= East 1. Formula= V= d/t with dir. 2.Work= V= 100m/10s East 3.Answer= V= 10m/s East
- 15. 3. Lisa is walking to a friend’s house. She walks 500m for 10 minutes, then realizes she forgot something important to bring. She turns around, and hurries back to her house. The walk/jog back takes her 5 minutes. Given: Total D= 500m + 500m = 1,000m Total T= 10min + 5 min= 15 min D= 500m D= 500m T= 10 min T= 5 min
- 16. a. What was her average speed in m/min? Given: Total Distance= 500m + 500m = 1,000m Total Time= 10min + 5 min= 15min 1. FormulaAverage Speed = total D/total Time 2.Work= Average Speed = 1,000m/15min 3.Answer= Average Speed = 67 m/min
- 17. 4. Nelson is running around the track oval. The oval is 800m long. He is running at a constant speed. It takes him 180 s to complete the track and get back to where he started. a. What is Nelson’s speed in m/s? Given: d= 800 m t= 180 s running at constant speed
- 18. Given: d= 800 m t= 180 s running at constant speed 1. Formula= Velocity= d/t 2. Work= V= 800m/180 sec around oval 3. Answer= V= 4.44 m/s around oval a. What is Nelson’s speed in m/s? If Nelson is running at constant speed, is he also moving at constant velocity ? No, he is always changing direction (running around the oval).
- 19. 5. Nemo is swimming his way to his best friend’s house Crush (the turtle). Nemo is swimming at 12 km/h and the current is moving at 10 km/hr. a. On the way to Crush’s house, he swims with the current. What is Nemo’s combined velocity on the way to Crush’s house? Given: V1= 12km/h V2= 10 km/h direction= to Crush’s house (Nemo) (current) 1.Formula = Combined velocity= V1 + V2 2. Work= CV= 12 km/h + 10 km/h 3. Answer = CV= 22 km/h to Crush’s house Current Nem0
- 20. b. When Nemo leaves Crush’s to go home, he has to swim against the current. What is Nemo’s combined velocity on the way home? Given: V1= 12km/h V2= 10 km/h dir.= Nemo’s home 1.Formula = Combined velocity= V1 - V2 2. Work = CV= 12 km/h - 10 km/h 3. Answer = CV= 2 km/h on the way home Against current