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April 19, 2014

Homework Help: physical science

Posted by dansile on Sunday, January 22, 2012 at 8:16pm.

a tennis player hits a ball of mass 200 g,which is moving towards him with a velocity of 30m/s west. calculate the impulse of the ball.
b.the force the racket will exact on the ball if the time of contact is 0.2 seconds

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