A car of mass Mis moving on a horizontal cirular path of radius r. At some instant its speed is v and in increasing at a rate a, then

A car of mass Mis moving on a horizontal cirular path of radius r. At

1.	A car of mass Mis moving on a horizontal cirular path of radius r. At some instant its speed is v and in increasing at a rate a, then
Answer» The acceleration of the car is towards the centre of the path The magnitude of the frictional force on the car is greater than `mv^(2)//r` The friction COEFFICIENT between the car and the ground is not less than `alpha //G` The friction coefficient between the car and the ground is `mu = TAN^(-1)v^(2)//rg` Answer :B