A body is moving in a circular orbit. It is just about to slide to the outer side and µ mg = mv2 / r . In this expression, µ represents

As viewed by the passenger of the car , a pseudo force mv2/r , which is radially outward , due to which the car has a tendency to slide outward which is prevented by a frictional force which is static in nature and we can write mv2/r ≤ µmg . So option (1) is right.