Tuesday
October 21, 2014

Homework Help: Physics

Posted by Jake on Sunday, February 10, 2013 at 2:07pm.

You run a race with your friend. At first you each have the same kinetic energy, but then you find that she is beating you. When you increase your speed by 21.0%, you are running at the same speed she is. If your mass is 77.0 kg, what is her mass?

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