BrainyWiz BrainyWiz

09-01-2019
Physics

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Calculate the change in velocity of a 0.070kg tennis ball hit by Serena with a force of 140 N over 0.020 s

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Cooperdevi Cooperdevi

09-01-2019

V=at and a=F/m

140/.070 = 2000m/s^2

2000*.020 = 40m/s

The ball’s velocity increased by 40m/s.

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