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December 17, 2014

Homework Help: physics

Posted by joy on Thursday, August 19, 2010 at 9:03am.

A 0.060 kg tennis ball, moving with a speed 2.50 m/s, collides head on with a 0.090kg ball initially moving away from it at a speed of 1.15 m/s. Assuming a perfectly elastic collision, what are the speed and direction of each ball after the collision?

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