Question

A rock is released at the top of a vacuum chamber and falls. As the rock
falls, which of the following is true about the gravitational potential energy
and kinetic energy?
(A) Gravitational potential energy decreases while kinetic
energy increases
(B) Gravitational potential energy increases while kinetie
energy decreases
(C) Both gravitational potential energy and kinetic energy cousse
(D) Both gravitational potential energy and kinetic energy decrease​

Answer 1

Answer:

it's option A

increase in height = increase in potential energy

decrease in that height with free fall = increase in kinetic energy

however, the sum of the KE and PE of that particular body remains the same (a constant) at any point of its journey.