A 1500 kg car traveling at 20m/s skids to a halt. What is the change in the thermal energy of the car and the road surface?(adsbygoogle = window.adsbygoogle || []).push({});

Here is how i try to approach it but i get a wrong answer:

First I solve for All dissipstive forces which is the frictional force in this problem.

I said the coefficient of the rolling friction is .02. to find the delta x, i used kinematic equations, and I end up with the wrong answer..could someone please tell me where i went wrong?

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# Homework Help: Thermal energy(physics)

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