On a circular curve, the rate of superelevation is $e$. While negotiating the curve a vehicle comes to a stop. It is seen that the stopped vehicle does not slide inwards (in the radial direction). The coefficient of side friction is $f$. Which of the following is true:
(A) $e \leq f$
(B) $f<e<2 f$
(C) $e \geq 2 f$
(D) none of the above
On a circular curve, the rate of superelevation is $e$. While negotiating the curve a vehicle comes to a stop. It is seen that the stopped vehicle does not slide inwards (in the radial direction). The coefficient of side friction is $f$. Which of the following is true:
(A) $e \leq f$
(B) $f<e<2 f$
(C) $e \geq 2 f$
(D) none of the above