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April 19, 2015

Homework Help: physics?

Posted by Brandon on Monday, May 21, 2012 at 3:13pm.

A falling rubber ball of mass m hits the ground with a speed of v and bounces straight up again after a 20% speed loss during the collision. The magnitude of the impulse it receives from the ground is
A 0.2mv B 0.8mv C mv D 1.8mv

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