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July 5, 2015

Homework Help: Physics Concepts

Posted by Bill on Saturday, March 5, 2011 at 11:37pm.

A father racing his son has one-third the kinetic energy of the son, who has two-fifths the mass of the father. The father speeds up by 1.5 m/s and then has the same kinetic energy as the son.

What is the Father's initial speed?

What is the Son's initial speed?

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