Give an example in which a force does work on a body but fails to change its Kinetic energy.

Give an example of motion in which the force does no work.

Is it possible exert a force which does work on a body without changing its kinetic energy? If so, give example.

Give example of a situation in which an applied force does not result in a change in kinetic energy.

Assertion :- According work energy theorem net work done on a body is equal to change in its kinetic energy. Reason :- The work energy theorem is independent of Newton's second law.

The total work done on a particle is equal to the change in its kinetic energy

Give one example each in which a force does (a) positive work (b) negative work and (c ) zero work.

Give one example each where: (a) a force moves a stationary body. (b) a force stops a moving body (c) a force changes the speed of a moving body. (d) a force changes the direction of a moving body (e) a force changes the shape (and size) of a body.

Statement -1: The work done by all forces on a system equals to the change in kinetic energy of that system . This statement is true even if nonconservative forces act on the system. Statement -2: The total work done by internal forces may be positive.