Monday
May 25, 2015

Homework Help: physics(help!!!!!!!)

Posted by H.T on Monday, April 25, 2011 at 8:27am.

A 1200kg car going 25m/s is brought to a stop using its brakes. Assuming that a total of approximately 20kg of iron in the brakes and wheels absorbs the heat produced by friction.
What was the carís original kinetic energy and after the car has stopped, what is the change in temperature of the brakes and wheels?

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