Homework Help: Physics

Posted by Eman on Wednesday, October 12, 2011 at 5:09pm.

A 1340 kg car going 21 m/s has to stop suddenly. The driver locks the brakes, and the car skids to a halt in a distance of 67 m .

What was the car's acceleration while stopping?

How much work was done by friction to stop the car?

What is the coefficient of kinetic friction between tires and road?

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