Question

On a roller coaster when does the car have potential kinetic energy and when is energy transferred?

Answer 1

Answer: When the roller coaster goes to the top of the tracks there is energy

Explanation: When going up you need energy but going down the energy is being transferred downwards.

Answer 2

Energy occurs when it is going upward. Yet when it is going downward, no energy is need because the force is pushing the cart down.