Answer to Question #245258 in Physics for Kiel

Question #245258

A rock weighs 100 kg sitting on top of a hill 20 m high . What is the potential energy of the rock

Expert's answer

The potential energy of block relative to the ground is

"E=mgh=100\u00b79.8\u00b720=19600\\text{ J}."

Relative to the top of the hill it is zero because the height above the top is zero.

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