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October 22, 2014

Homework Help: Physics

Posted by Elizabeth on Thursday, November 15, 2012 at 12:34am.

The wheel of a car has a radius of 0.390 m. The engine of the car applies a torque of 282 N m to this wheel, which does not slip against the road surface. Since the wheel does not slip, the road must be applying a force of static friction to the wheel that produces a countertorque. Moreover, the car has a constant velocity, so this countertorque balances the applied torque. What is the magnitude of the static frictional force?

Answer is in N

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