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April 16, 2014

Homework Help: Physics

Posted by Becky on Wednesday, March 21, 2012 at 3:53pm.

A ball is moving at 82 m/s when it hits a ball at rest which has a mass fours times as big as its own. The formally stationary ball leaves the collision with a speed of 7.5 m/s what is the final velocity of the first ball?

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