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The speed of a car is decreasing uniformly from 35 m/s to 15 m/s in 4 s. What's the magnitude of the car's acceleration?

 Oct 2, 2019
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Acceleration is change in velocity divided by change in time

 

(15 m/s-35 m/s) / 4 s = -5 m/s2

 Oct 2, 2019

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