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 carâ€™s original kinetic energy and after the car has stopped, what is the change in temperature of the brakes and wheels?

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