Question : 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 ℎ with respect to inner edge so that a car with velocity 𝑣 can pass safe over it. The value of ℎ is
(A) \dfrac{v^{2}b}{Rg}
(B) \dfrac{v}{Rgb}
(C) \dfrac{v^{2}R}{g}
(D) \dfrac{v^{2}b}{R}
Answer : option (A)
Solution :