A car is travelling on a circular track of radius r , the centre of gravity is at height h above the track. The distance between the wheels is d , the coefficient of friction between tyres and the track is  μ ….

Q: A car is travelling on a circular track of radius r. the centre of gravity is at height h above the track. The distance between the wheels is d , the coefficient of friction between tyres and the track is  μ . The value of h at which the car may be on the point of both sliping as well as overturning simultaneously

(a) d/μ

(b) d/2μ

(c) d/8μ

(d) d

Ans: (b)