# Physics

On a curved roadway of radius 100 m, the suggested speed limit is 35 mph (approximately 16 m/s). What must the coefficient of friction be between a car’s tires and the road for the car to safely negotiate the curve at the posted speed?

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3. 👁 139
1. force friction=centripetal force
mg*mu=m*v^2/r
solve for mu

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