Question

If there was no friction, what would happen to a moving object?

Answer 1

Friction affects the relative motion between two surfaces in contact. Without friction, objects would not be able to move from a stationary position or stop when in motion. When a body is in motion and if there is no friction, it becomes impossible to bring it to rest. Think of a situation when you are travelling in a car and you cannot stop it because there is no friction between the surface of the tyres and that of the road. It will be a disadvantage in this case.