A 2-kg stone falls 100 meters near the surface of the earth. It strikes the ground without any rebound thereby making a completely inelastic collision with the earth. Approximately how much kinetic energy is transferred to the earth in this process?
A)zero joules
B)200 J
C)2000 J
D)10 000 J
E)20 000 J

Question

Quizplus · Accepted Answer

In a completely inelastic collision, the kinetic energy is not transferred to the earth but is instead transformed into other forms of energy, such as heat and sound. Therefore, the kinetic energy transferred to the earth is zero joules.

A 2-Kg Stone Falls 100 Meters near the Surface of the Earth