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April 20, 2014

Homework Help: physics

Posted by John on Friday, February 24, 2012 at 1:04am.

A skater of mass 74.0 kg initially moves in a straight line at a speed of 4.60 m/s. The skater approaches a child of mass 45.0 kg, whom he lifts on his shoulders. Assuming there are no external horizontal forces, what is the skater's final velocity?

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