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truong24
truong24 truong24
  • 18-02-2017
  • Biology
Answered

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 m/s. what is the ball s acceleratio class=

Verified Answer :

LeBellé
LeBellé LeBellé
  • 18-02-2017

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

View image LeBellé
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