Question

Show that for a freely falling object the sum of its potential energy and kinetic energy remains unchanged at all points during its fall.

Answer 1

Answer:

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. As the object hits the hard 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.

Kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass.

Potential energy is stored energy that depends upon the relative position of various parts of a system.

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