Is friction a contact force or non-contact force?justify your answer.
Answers
The force which always opposes the motion of one body over another body frictional force. It acts between the two surfaces which are in contact with each other. Since frictional force arises when the surface of two objects are in touch with each other ,therefore, frictional force is an example of contact force.
Answer:
The frictional force is an example of a contact force. Gravitational force is an example of a non-contact force.
Explanation:
The frictional force is a contact force that acts in the opposite direction to the motion of an object. This force can cause objects in motion to come to rest, as they act in the opposite direction to its motion.
E.g. - If you roll a ball on a surface, it would come to rest after a short while. It does not keep on moving, this is due to the frictional force acting in the opposite direction of the motion causing it to stop and come to rest.