An object of mass m is held at a vertical height h from ground level. It is then released and falls under the influence of gravity. Which of the following statements is true in this situation? (Neglect air resistance.)

Question

Quizplus · Accepted Answer

As the object falls under the influence of gravity, its potential energy (due to the height above the ground) decreases. This decrease in potential energy is converted into an equal increase in kinetic energy (due to the object's motion). Therefore, the potential energy of the object is decreasing and the kinetic energy is increasing. However, the total energy of the object (the sum of its kinetic and potential energy) remains constant, as there is no external work done on the object. So, option E is the correct answer. Option A, B, C, and D are incorrect.

An Object of Mass M Is Held at a Vertical