Question
A road is 5m wide. Its radius of curvature is 50m. The outer edge is above the inner edge of road by a distance 0-5m. If the coefficient of friction of road is 0.3, find the upper limit of velocity on the road.
Solution
Given that,
Radius of the road, 
Tangent of the angle of banking of road is,
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Now the upper limit of the velocity is,
So, upper limit of the velocity of road is, v = 14.36 m/s
