A rock is dropped straight down from roof. It hits the ground with a velocity of 28.2 m/sec. How high was the roof, and how long did it take to hit the ground?

Question

03-03-2021
Physics

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A rock is dropped straight down from roof. It hits the ground with a velocity of 28.2 m/sec. How high was the roof, and how long did it take to hit the ground?

Sagot :

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