When an apple falls from a tree what happens to its gravitational potential energy just as it reaches the ground? After it strikes the ground?

The gravitational potential energy at the height of h from the ground is

What happens to the total energy of a freely - falling body when it strikes the ground ?

When a person jumps from a tree to the ground what happens to the momentum of the person upon striking the ground ?

When a person jumps from a tree to the ground what happens to the momentum of the person upon striking the ground ?

A 10 kg ball is dropped from a height of 10m. Find (a) the initial potential energy of the ball. (b) the kinetic energy just before it reaches the ground, and (c ) the speed just before it reaches the ground.