* Coefficient of Friction: The coefficient of friction (μ) is a dimensionless quantity that represents the ratio of the force of friction to the normal force acting on an object. The normal force is the force that the surface exerts perpendicularly to the object, which is equal to the object's weight on a flat surface.
* Force of Friction: The force of friction (Ff) is the force that opposes the motion of an object across a surface. It is calculated using the formula: Ff = μ * N, where N is the normal force.
In summary:
* The coefficient of friction is a property of the surfaces in contact.
* The normal force is equal to the weight of the object on a flat surface.
* The force of friction is directly proportional to the normal force and the coefficient of friction.
Therefore, the coefficient of friction is the ratio of the force of friction to the normal force, not the weight of the object.
