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December 18, 2014

Homework Help: Science

Posted by Kushagra on Friday, February 10, 2012 at 12:56pm.

During a football match, the ball shot towards the goal struck the defender's foot at the speed of 10m/s and it bounced back at 20m/s. If the time of impact was 0.2 sec, and mass of the ball 0.5 kg,then find the average force exerted by defender on the ball.

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