Assignment 5 B Need For Speed
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1. The document analyzes the energy transfers and power requirements for short distance running races like sprints and hurdle races. 2. It calculates the work, kinetic energy, air resistance, and power needed at different phases of a 100m sprint and 110m hurdle race for an athlete with a mass of 70kg. 3. The total energy required for the 110m hurdle race is calculated to be 15,491 joules, with a power output of 1,198 watts to complete the race in the given time.
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Tikkun Fenix svolge un\'attività di Comunicazione a 360°, che fornisce un servizio completo di: Comunicazione Integrata ed Istituzionale, Pubbliche Relazioni e Media, Responsabilità Sociale d\'Impresa, Business Coaching, Consulenza Gestionale Aziendale attraverso una metodologia innovativa e creativa. Attraverso il Networking siamo in grado di offrire un gruppo di professionisti partendo dalla Comunicazione all\' IT al fine di ottenere linee comunicative innovative, coordinate e creative facendo guadagnare ai clienti tempo e risorse.
Il vostro successo e dei nostri partner è il nostro obiettivo.
Comunicare oggi è sempre più complicato, i pubblici sono molto più eterogenei ed esigenti, viviamo in una era di globalizzazione, ognuno di noi riceve ogni giorno centinaia di messaggi da ognidove. Affinchè gli investimenti in comunicazione si traducano in messaggi e relazioni efficaci è fondamentale la gestione corretta delle strategie e degli strumenti idonei per una migliore crescita di immagine, reputazione e qualità.
Desideriamo crescere insieme in un clima di miglioramento personale e professionale, con l\'unicità dei nostri servizi l\'entusiasmo ed il successo.
Per questo Tikkun Fenix si propone come partner competente e professionale a cui affidare la gestione delle attività di comunicazione integrata di aziende, enti, associazioni e organizzazioni.
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Tikkun Fenix svolge un\'attività di Comunicazione a 360°, che fornisce un servizio completo di: Comunicazione Integrata ed Istituzionale, Pubbliche Relazioni e Media, Responsabilità Sociale d\'Impresa, Business Coaching, Consulenza Gestionale Aziendale attraverso una metodologia innovativa e creativa. Attraverso il Networking siamo in grado di offrire un gruppo di professionisti partendo dalla Comunicazione all\' IT al fine di ottenere linee comunicative innovative, coordinate e creative facendo guadagnare ai clienti tempo e risorse.
Il vostro successo e dei nostri partner è il nostro obiettivo.
Comunicare oggi è sempre più complicato, i pubblici sono molto più eterogenei ed esigenti, viviamo in una era di globalizzazione, ognuno di noi riceve ogni giorno centinaia di messaggi da ognidove. Affinchè gli investimenti in comunicazione si traducano in messaggi e relazioni efficaci è fondamentale la gestione corretta delle strategie e degli strumenti idonei per una migliore crescita di immagine, reputazione e qualità.
Desideriamo crescere insieme in un clima di miglioramento personale e professionale, con l\'unicità dei nostri servizi l\'entusiasmo ed il successo.
Per questo Tikkun Fenix si propone come partner competente e professionale a cui affidare la gestione delle attività di comunicazione integrata di aziende, enti, associazioni e organizzazioni.
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1. Work is the product of the applied force and the displacement along the line of action of the force. Positive work is done when force and displacement are in the same direction, while negative work is done when they are in opposite directions.
2. Kinetic energy is the energy of motion and is calculated as one-half mass times velocity squared. Potential energy is the energy due to an object's position or deformation and includes gravitational potential energy calculated as mass times gravitational field strength times height, and strain potential energy stored in deformed objects.
3. The work-energy principle states that the work done on an object causes a change in its kinetic and potential energies. Work can convert an object's potential energy to
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.
Work, Energy Power rev.pptbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbn
The document discusses work, power, and energy. It defines work as the product of force and displacement along the line of action of the force. Positive work is done when force and motion are in the same direction, and negative work is done when they are opposite. Power is defined as the rate of doing work. Kinetic energy is the energy due to an object's motion and depends on its mass and velocity. Potential energy can be gravitational, depending on an object's mass, height, and gravitational field, or strain, stored in deformed objects. The work-energy theorem states that work done on an object causes a change in its kinetic and potential energies.
pascals programming lan
1. The document contains a student's solutions to physics problems involving motion. It includes calculations of speed, velocity, and average speed for scenarios like a tortoise and hare race, motion of a particle, speed of a slow crab, and average speed for a car trip with varying speeds.
2. The student provides detailed calculations and step-by-step working to solve for values requested in each problem, such as time taken, velocity, speed, or average speed.
3. The problems cover concepts like constant acceleration, varying speeds, and calculating average rates over a full distance or time period.
Uslides2
This document summarizes key concepts in physics related to motion, forces, energy, and sound waves. It covers Newton's laws of motion, definitions of speed, velocity, and acceleration. It also discusses gravitational force, momentum, work, power, heat transfer, and the properties of sound waves including wavelength, frequency, and how the velocity of sound varies with temperature. Key figures discussed include Aristotle, Galileo, Newton, and their contributions to the study and understanding of motion and force.
Example problem
The document contains 12 example problems related to rocket propulsion and orbital mechanics. Problem 1 calculates the thrust of a spacecraft engine. Problem 2 calculates the change in velocity of the spacecraft after burning its engine for 1 minute. Problem 3 calculates the amount of propellant needed for a given change in velocity. The remaining problems involve calculations related to rocket performance parameters, orbital elements, and satellite velocities and orbits.
Thermodynamics_1_by_Hipolito_Sta_Maria_o.pdf
This document appears to be the beginning of a thermodynamics textbook. It includes definitions of key concepts like mass, weight, density, pressure, and various units of measurement. It also provides examples of using concepts like the ideal gas law, processes like isothermal and adiabatic, and thermodynamic cycles like Carnot and Otto. The document establishes fundamental principles, units, and terminology for further chapters covering topics like gas behavior, compressors, and the Brayton cycle.
Thermodynamics_1_by_Hipolito_Sta_Maria_o.pdf
This document appears to be about thermodynamics concepts but contains mostly symbols and formatting characters that do not convey clear information. It includes sections labeled "Mass and Weight", "Pressure", and "Specific Volume, Density and Specific Weight" but the content is technical equations, symbols, and diagrams without explanations. It also includes example problems and solutions but they are difficult to understand without more context about the concepts being demonstrated. Overall, the document lacks clear, concise summaries due to being primarily technical equations and diagrams without explanatory text.
circular motion Mechanics
This document provides an overview of circular motion concepts including:
- Angular position, velocity, and displacement relationships
- Tangential velocity and how it relates to angular velocity
- Centripetal acceleration and the centripetal force required to cause an object to travel in a circular motion
- Examples of circular motion problems are provided to illustrate applying concepts like drawing free body diagrams and calculating minimum speeds, coefficients of friction, and banked road angles.
Flywheels
This document provides an overview of flywheels and their use in smoothing out torque fluctuations in machines like engines and presses. It defines key terms like the coefficient of fluctuation of speed and energy. It shows how to calculate the required moment of inertia of a flywheel to keep a machine's speed within specified limits given the torque-angle diagram. It also derives the effective moment of inertia for geared systems. Several example problems are worked through to demonstrate these calculations.
Law of momentum
This document provides examples and explanations of key physics concepts including:
- The law of momentum is used to calculate total momentum before and after collisions between objects of different masses moving at different velocities. Conservation of momentum is demonstrated.
- Graphs of position, velocity, and acceleration over time can show motion and changes in motion.
- Newton's second law relates force, mass, and acceleration. Examples show how to calculate any one of these values given the other two.
- Energy concepts like activation energy, work, and spring potential energy are defined and calculations are provided to determine these values in example scenarios.
Turning moment Diagrams
The document discusses turning moment diagrams and flywheels. It defines turning moment diagrams as graphical representations of the turning moment or crank effort at different crank angles. Examples are given for single cylinder engines and multi-cylinder engines. Flywheels are described as reservoirs that store energy when supply exceeds demand and release it when demand is greater than supply, controlling speed fluctuations during each engine cycle. Formulas are provided for determining maximum energy fluctuations, coefficients of fluctuation of energy and speed, and energy stored in a flywheel. Two example problems are worked through applying these concepts and formulas.
Olympic Weightlifting - the Clean
Olympic weightlifting clean presentation from my 2016/17 Strength and Conditioning placement at the Sports Institute of Northern Ireland (SINI). Includes presentation overview, clean phases and bar trajectory (first and second pull) and clean derivatives etc. Any names of athletes have been replaced with ''Athlete 1'' etc. to maintain confidentiality. I had the presentation sitting on my desktop but it might be a useful starting point for someone. Feel free to comment
Introduction to Dynamics
The basic concepts associated with some elements of dynamic engineering systems and calculations are discussed. The theory associated with Linear and angular motion, energy and simple harmonic motion are outlined with sample calculations for each topic being given.
TWIP Control
This document describes the control system for balancing a two-wheeled inverted pendulum robot, such as a Segway. It discusses using a mathematical model and state space equations in a model-based controller or a physical model and PID controller in an error-based controller. It then describes the hardware implementation using an Arduino, accelerometer, encoder, and DC motor to read sensor values, calculate angle and velocity, and provide feedback control to balance the robot.
Similar to Assignment 5 B Need For Speed (20)
Work, Energy Power rev.pptbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbn
Work, Energy Power rev.pptbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbn
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Assignment 5 B Need For Speed
- 1. Need for Speed ----The Champion of The Track
- 2. Limitless world… Endless work…
- 3. Categorize 1.The athlete is the system. 2.When running, air does negative work, and the track does positive work, so the energy transfer can be E = Ek + Wair 3.Suppose the athlete’s mass is 70 kg, DA = 1 kg/m Getting down to business … F air F friction
- 4. For short-distance running race 4 Phases 1 . High acceleration phase 2. Low acceleration phase 3. Maximum velocity phase 4. Deceleration phase
- 5. Results… For a well trained sprinter, his vibration of his center of gravity in running is small. Just raise about 5cm Wu=mgh=70*10*0.05=35J Vaven is the average speed of the nth phase. D=1, ρ=1.2kg/m^3 , A=0.6m^2 Wairn=0.5*ρDAVaven^2 ΣWu=35J*40 W 1 =Wair1+ △ K1 =2801 J W2=Wair2+ Wu *22+ △ K2 =4688 J W3=Wair3+ Wu *13+ △ K3 =4688 J Wtot=ΣWair+ΣWu+(Kf-Ki)=12930 J P = Wtot/t= 1334W To improve the result by 10%, then the time is t’=8.72s Then Wtot’ =13249 J The extra energy △ W=319 J The extra power △P=185 W
- 6. Hurdling Conceptualize Because these are short-distance running races, the change of the height of his body could not be ignored. His body is lifted approximately 10cm per stride. Assume his body temperature does not change – neglect the internal energy. Kinetic energy and air resistance should be considered. When the athlete jump above the hurdles, the upper part of his barely moves. But his legs are lifted to the height of those hurdles.
- 9. Finalize To improve the result by 10%, the time of 110 m hurdle race will be 11.64s and 400m hurdle race 42.53s. Thus, the extra energy We 1= 1524 J The extra power P1’= (Wm1+ We 1)/t1’ — P1= 264 W From the result, we can tell that improving performance in these running races needs great efforts as well as special techniques, for it requires so much to improve. And here’s a graph which can approximately describe the relationship between distance and energy during the 110m hurdle race.
- 10. Thank you !