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25-11-2021
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A rock falls from rest off a high cliff. How far has the rock fallen when its speed is 39. 2 meters per second? [neglect friction. ].

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davearnoldnation davearnoldnation

25-11-2021

The rock has fallen 78.4 meters

If you assume that rock starts at a speed of zero V0=0 kinetics formulas can be used to determine the change in distance from the start of acceleration to right before it hits the ground at 39.2 m/s

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