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A freely falling object eventually stops on reaching the ground. What happens to its kinetic energy?

ScienceClass 9CBSEAnswered 27 Mar 2026
Answer

Solution:

When an object falls freely towards the ground, its potential energy decreases, and kinetic energy increases; as the object touches the ground, all its potential energy becomes kinetic energy. Since the object hits the ground, all its kinetic energy becomes heat energy and sound energy. It can also deform the ground depending upon the ground’s nature and the amount of kinetic energy possessed by the object.

Science · Class 9