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Sprinting near the end of a race, a runner with a mass of 75 kg accelerates from a speed of 5.0 m/s to a speed of 8.0 m/s in 2.0 s. What is the runner’s average acceleration during this time?

 

Mar 3rd, 2015

Change in speed = 8m/s - 5m/s = 3m/s

Time = 2s

Acceleration = Change in speed / time = 3/2 = 1.5m/s^s


Hope this helped!

Mar 3rd, 2015

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