If a body falls from a height bounces from ground and again goes upwards with loss of a part of its energy.
(i) How will its potential energy change?
(ii) What are various energy conversions taking place?
(iii) What will be its ultimate energy?
(i) When it strikes ground, its PE is zero and after bouncing, its potential energy increases gradually.
(ii) At the time it strikes the ground, it has maximum KE and after it bounces, its KE starts changing into potential energy.
(iii) The ultimate or total energy remains constant at any point of time during the motion.