Kinetic Friction

Definition

Kinetic friction is the force that opposes the motion of an object when it is already moving. It occurs between two surfaces in contact and depends on the coefficient of kinetic friction and the normal force.

Related terms

Coefficient of Kinetic Friction:

A value that represents how rough or smooth two surfaces are in contact. It determines the strength of kinetic friction.

Static Friction:

The force that opposes motion when an object is at rest and trying to be moved.

Rolling Friction: The resistance encountered by an object rolling over a surface, which is generally smaller than kinetic or static friction.