Question

When going down in the inclined plane, the kinetic energy of the smart car __________
(Consider the smart car is released from the top of the inclined plane.)

A) remain constant

B) increases

C) decreases

D) cannot predict

Answer 1

B) increases.

Starting from rest , car would feel gravitational force component along inclined plane. This would produce acceleration on car and increase its velocity and therefore kinetic energy.