MHT CET 2025 Physics question
A car is driven on the banked road of radius of curvature 20 m with maximum safe speed. In order to increase its safety speed by 20%, without changing the angle of banking, the increase in the radius of curvature will be [Assume friction is same on the road]
Answer: (C)
Solution
On a banked road with friction, . Since the banking angle and friction coefficient are unchanged, the fraction is a constant and . New speed , so
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