Which of the following statement is correct ?

Options

A. kinetic energy of the system can be changed without chainging its momentum
B. kinetic energy of the system can not be changed without chainging its momentum
C. Momentum of a the system can not be changed without chainging its kinetic energy
D. A system connot have energy without having momentum

Answer

A

Explanation

In explasion of a both or inclasic collsion momentumm two bodies as force is internal is conserval while `KE` chaeiges Hence `KE` of a system can be changed without changing As momentum simillarly the revers is also true e.g. if a fvorce act spoprpendicular to motion work done will be zero and so `KE` will remain constant . however , the force will change the direction of motion and som the momentum ,
further may have energy `(i.e.)` potential energy) without having mopmentum