# Friction and Circular Motion

In circular motion, it is said that the friction acts towards the centre of the circular path. But friction opposes tendency of relative motion and since the velocity of the body(in circular motion) is along the tangent to the circular path at that instant, why isn't the frictional force acting in the opposite direction.

• Who says that friction acts towards the centre of the circular path? – noah Aug 17 at 17:35
• My school book and teachers – user81201 Aug 17 at 17:42
• Same question as noah. – Bob D Aug 17 at 17:42
• Tell us exactly what your school book says and in what context. – Bob D Aug 17 at 17:43
• Motion of a car on a level road – user81201 Aug 17 at 17:46

In the absence of any other centripetal forces on an object on a circular trajectory, in order to stay on its circular path a friction force pointing towards the centre of the circle provides the centripetal force $$F_c$$.