Question: A circular road of radius 1000 𝑚 has banking angle 45°. The maximum safe speed of a car having mass 2000 𝑘𝑔 will be, if the coefficient of friction between tyre and road is 0.5
(A) 172 𝑚/𝑠
(B) 124 𝑚/𝑠
(C) 99 𝑚/𝑠
(D) 86 𝑚/s
Answer: option (A)
Solution:
