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http://prntscr.com/mbp3pd

 Jan 24, 2019
 #1
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Acceleration is change in velocity/change in time

 

18 to 26 m/s    is        8 m/s

change in time = 2 seconds

 

8 m/s  /  2 s  = 4 m/s^2

 Jan 24, 2019

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