# Physics

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An object is dropped from a cliff and reaches a velocity of 47.5 m/s at the time of impact. a) How high is the cliff? b)How long did it take to hit the river below?

• Physics -

a) V = sqrt(2 g X)
Solve for X (the cliff height)

b) V = g*t
Solve for t

• Physics -

4.84 s

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