Asked by Timson Wakrit

The potential energy of a golf ball in a hole is negative with respect to the ground. Under what circumtansces (if any) is the ball's kinetic energy? Its rest energy? The KE cannot be negative, nor can the rest energy be negative.
Answered by bobpursley
correct on KE, it can't be negative. However, rest energy is dependent on the potential field (gravity or otherwise) and the value which is chosen to be zero.
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