The Total solution for NCERT class 6-12
A freely fallingobject eventually stops on reaching the ground. What happens to its kineticenergy?
When the object falls freely towards the bottom, its mechanicalenergy decreases and K.E. will increase, because the object touches the bottom,all its mechanical energy gets reborn into K.E. Because the object hits thelaborious ground, all its K.E. gets reborn into heat and sound energy. It mayalso deform the bottom relying upon the character of the ground and thereforethe quantity of K.E. possessed by the thing.