Question

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

Answer 1

Its potential energy changes to kinetic energy as when the apple fall it losses its energy as it increases when its raises up so now the apple is in motion so kinetic energy increases and potential energy decreases

Answer 2

as apple falls by conservation of mechanical energy the potential energy of the apple due to its height is gradually decrease or gets converted into kinectic energy