physics(help!!!!!!!)

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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?

• physics(help!!!!!!!) -

Iniital KE=1/2 m v^2
heat in the stopping process: Initial KE

massiron*specificheatiron*(deltaTemp)=heat

solve for deltatemp

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