Kinetic energy, Physics

Assignment Help:

Why is the Kinetic energy of the system minimum in the frame of the center of mass for any number of particles

solution) The kinetic energy of any entity depends on the reference frame in which it is measured. Though the total energy of an isolated system, i.e. one which energy can neither enter nor leave, does not change in whatever reference frame it is calculated. Therefore, the chemical energy converted to kinetic energy by a rocket engine is divided differently among the rocket ship and its exhaust stream depending upon the chosen reference frame. This is known as the Oberth effect. But the total energy of the system, including kinetic energy, fuel chemical energy, heat, etc., is conserved over time, regardless of the choice of reference frame. Different observers moving with dissimilar reference frames disagree on the value of this conserved energy.

The kinetic energy of such systems depends on the choice of reference frame: the reference frame that gives the minimum value of that energy is the center of momentum frame, i.e. the reference frame in which the total momentum of the system is zero. This minimum kinetic energy contributes to the invariant mass of the system as a whole.


Related Discussions:- Kinetic energy

Explain forward bias and reverse bias, Explain briefly, with the help of ci...

Explain briefly, with the help of circuit diagram, how V - I characteristics of a p-n junction diode are obtained ii (i) forward bias, and (ii) reverse bias. Illustrate th

Photoelectric cell, A device which changes light energy into electrical ene...

A device which changes light energy into electrical energy is known as photoelectric cell. It is also known as photocell or electric eye.

Show the definition for power, Question: What all are able to the power...

Question: What all are able to the power P possibly represent in the expression P = IV where I is current and V is voltage? Answer: The small definition for power is th

What are the disadvantages of fibers optics, What are the disadvantages of ...

What are the disadvantages of fibers optics? This must be borne in mind that the real nature of the conductor, in lighting systems, shows only one of the components responsible

How the scattered electrons form strong diffraction pattern, Davisson and G...

Davisson and Germer scattered electrons from a crystal of nickel. The scattered electrons formed a strong diffraction pattern. What significant conclusion was drawn from thi

What is microwave oven, Q. What is microwave oven? How it works? Mic...

Q. What is microwave oven? How it works? Microwave oven It is utilized to cook the food in a short time. When the oven is manage the microwaves are generated which in turn

Fresenl''s theory, explain fresenl''of optical rotations theory

explain fresenl''of optical rotations theory

Write three special characteristics of the light source, Write three specia...

Write three special characteristics of the light source used in optical communication. Name any one optical detector. Define the meaning of the term 'sensitivity' and 'responsively

Motion, a ball is thrown up and come in the hands of thrower find heigth

a ball is thrown up and come in the hands of thrower find heigth

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd