a car is traveling at 20 m/s and is brought to the rest by applying brakes over a. Of 4 second what is an average acceleration over the time interval

asked Oct 28, 2017 120k views

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4 votes

u = 20 m/s
v = 0 m/s
t = 4 s

a = v - u/t = -20/4 = -5m/s²

Mazz answered Nov 3, 2017

by Mazz

8.5k points

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