Question : Find the maximum speed at which a car can turn round a curve of 30 m radius on a level road if the coefficient of friction between the tyres and the road is 0.4 (Acceleration due to gravity = 10 ms−2)
(A) 12ms^{-2}
(B) 10ms^{-2}
(C) 11ms^{-2}
(D) 15ms^{-2}
Answer : option (C)
Solution :
