Thursday
October 30, 2014

Homework Help: Physical Science

Posted by Donna on Friday, March 20, 2009 at 10:32am.

A 30 kg girl and a 25 kg boy face each other on friction-free roller blades. The girl pushes the boy, who moves away at a speed of 1.0 m/s. The girl speed is _______ m/s?

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