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12 November, 04:42

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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  1. 12 November, 08:08
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    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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