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A circular curve of highway is designed for traffic moving at 60 km/h (= 37 mi/h). (a) If the radius of the curve is 150 m (= 490 ft), what is the correct angle of banking of the road? (b) If the curve were not banked, what would be the minimum coefficient of friction between tires and road that would keep traffic from skidding at this speed?

A circular curve of highway is designed for traffic moving at 60 km/h (= 37 mi/h). (a) If the radius of the curve is 150 m (= 490 ft), what is the correct angle of banking of the road? (b) If the curve were not banked, what would be the minimum coefficient of friction between tires and road that would keep traffic from skidding at this speed?

Grade:upto college level

1 Answers

Deepak Patra
askIITians Faculty 471 Points
8 years ago
233-1690_1.PNG
Round off to two significant figures,
θ = 11°
Therefore the angle of banking is 11°.

233-187_1.PNG
Therefore the coefficient of friction between the tires and the road is 0.19 .

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