How large must the coefficient of static friction be between the tires and road if a car is to round a level curve of radius 125 m at a speed of 95km/h
A frictional coefficient of unity yields 1 g = 9.81 m/s of centripetal acceleration on level ground, so the required frictional coefficient is: = 8.193/9.81 = 0.835. This assumes that no forward thrust is applied to the tires to overcome air drag.