A car of mass 800 kg moves on a horizontal circular track of radius 40 m. If the coefficient of static friction (μs) is 0.5, then the maximum velocity with which the car can move will be
The correct option is D 14 m/s
For this case, the road is an unbanked horizontal circular track, hence friction is the only source of centripetal force (Fc).
Vertical forces on the body are balanced, since ay=0
For executing circular motion successfully:
From Eq.(1) and (3):