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A 1,210 kg car going 32 m/s is brought to a stop using its brakes. Let's...

A 1,210 kg car going 32 m/s is brought to a stop using its brakes. Let's assume that a total of approximately 28 kg of iron in the brakes and wheels absorbs the heat produced by the friction.

(a)What was the car's original kinetic energy (in J)?
________J

(b)After the car has stopped, what is the change in temperature (in °C) of the brakes and wheels?

________ °C

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