Physics, 02.12.2021 02:30 niti1409

A rock of mass 45.0 kg is lifted by a crane. Suppose that the crane accidentally drops the rock from a height of 32.0 m. How much work does gravity do on the rock? What is the rock's Kinetic Energy and final velocity just before it hits the ground?

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A rock of mass 45.0 kg is lifted by a crane. Suppose that the crane accidentally drops the rock from...