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A 400kg rock sits on top of a 250m cliff. During an earthquake, the rock falls from the cliff. What is the rock's PE when it is 50m from the ground? PE = mgh = Wh 9 = 9.8 m/s2​
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A 400kg rock sits on top of a 250m cliff. During an earthquake, the rock falls from the cliff. What is the rock's PE when it is 50m from the ground? PE = mgh = Wh 9 = 9.8 m/s2​

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