Radius of the curved road on national highway is R. Width of the road is b. The outer edge of the road is raised by hwith respect to inner edge so that a car with velocity vcan pass safe over it. The value of his
A
v2bRg
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B
vRgb
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C
v2Rg
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D
v2bR
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Solution
The correct option is Av2bRg We know that tanθ=v2Rgandtanθ=hb Hencehb=v2Rg⇒h=v2bRg