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

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:

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