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October 21, 2014

Homework Help: physics

Posted by Anonymous on Sunday, January 10, 2010 at 4:59pm.

A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward it is found that the incoming ball has bounced backward with a speed of 3.9 m/s.

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