Force of Friction Equation (Ff=μFn)

Definition

The force of friction equation states that the force of friction (Ff) acting on an object is equal to the coefficient of friction (μ) multiplied by the normal force (Fn).

Analogy

Think of walking on ice. The force of friction is like how much grip your shoes have on the ice. If you have shoes with high friction, they will stick better and provide more resistance when you try to slide. But if you have shoes with low friction, it's easier for you to slide around.

Related terms

Coefficient of Friction: A value that represents how rough or smooth two surfaces are in contact with each other.

Static Friction: The frictional force that prevents an object from moving when there is no external applied force.

Kinetic Friction: The frictional force that opposes motion between two surfaces in contact when they are already moving relative to each other.