Physics, 05.09.2020 22:01 girlieredc

A 2kg rock is at the edge of a cliff 20 meters above a lake. It becomes loose and falls toward the water below. Calculate the potential energy half way down. Its speed is 14 m/s halfway down.

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A 2kg rock is at the edge of a cliff 20 meters above a lake. It becomes loose and falls toward the w...