truong24 truong24

19-02-2017
Biology

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A ball is dropped from a window and takes 2 seconds to reach the ground. It starts from rest and reaches a final speed of 20 m/s. what is the ball's acceleration?

A ball is dropped from a window and takes 2 seconds to reach the ground It starts from rest and reaches a final speed of 20 ms what is the balls acceleration class=

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LeBellé LeBellé

19-02-2017

The answer is 40 m, because you must cross multiply by using proportions.
I showed my work below.

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