Question

If a cyclist moving with a speed of 4.9 m/s on a level road can take a sharp circular turn of radius 4 m, then coefficient of friction between the cycle tyres and road is

(a) 0.51

(b) 0.41

(c) 0.71

(d) 0.61

Answer 1

Correct option (d) 0.61

Explanation :

While a cyclist moving with a speed v takes a sharp tum on a circular track of radius r, the coefficient of friction is given by