A stalled car is pushed to the top of a hill, allowed to roll down the hill and started by "clutch-popping" (turning the key while releasing the clutch rapidly) . At which point did the car have the greatest amount of potential gravitational energy?
A) at the bottom of the hill
B) at the top of the hill
C) when restarted using the key and clutch
D) being pushed to the top of the hill
E) as it was rolling down the hill
Correct Answer:
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