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April 24, 2014

Homework Help: physics

Posted by nan on Monday, October 3, 2011 at 9:40pm.

A father racing his son has 1/3 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.4 m/s and then has the same kinetic energy as the son. What are the original speeds of (a) the father and (b) the son?

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