Physics, 29.09.2019 22:30, uberagentkenny

At the top of a cliff 100 m high, raoul throws a rock upward with velocity 15.0 m/s. how much later should he drop a second rock from rest so both rocks arrive simultaneously at the bottom of the cliff?

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At the top of a cliff 100 m high, raoul throws a rock upward with velocity 15.0 m/s. how much later...