What speed does the rock have as it strikes the ground

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Reference no: EM13503849

A 16 kg rock, m, is on the edge of a 90 m cliff, h, as shown in Figure 11-20. Assume that air resistance is negligible.

(a) What potential energy does the rock possess relative to the base of the cliff?

(b) The rock falls from the cliff. What is its kinetic energy just before it strikes the ground?

m/s

Reference no: EM13503849

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