Question

What do you understand by the term frictional force?

Answer 1

1. Frictional force: It always resists the motion of an object when contacts between two surfaces.
2. It is a contact force.
3. Friction is the force that resists motion when the surface of one object comes in contact with the surface of another.
4. The frictional force acts always opposite to the motion of an object.
5. Ex: rolling ball stopped after some time.