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December 19, 2014

Homework Help: physics

Posted by dreamygirl on Wednesday, May 9, 2012 at 8:12pm.

A tennis player smashes a serve so that the racquet is in contact with the ball for 0.055 s, giving it an impulse of 2.5 N ⋅ s. What average force was applied during this time? Assume that the vertical motion of the ball can be ignored. If the ball's mass is 0.060 kg, what will be the ball's horizontal velocity?

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