Coefficient of Friction Calculator

Enter the normal force and friction force into the coefficient of friction calculator below. Evaluate the coefficient of friction between two surfaces.

Coefficient of Friction Formula

The following formula is used in the coefficient of friction calculator above:

u = F / N

  • Where u is the coefficient of friction
  • F is the force due to friction
  • N is the normal force
Coefficient of Friction Calculator

This can be used in both static and kinetic friction cases. In a static friction case, the force applied, P, will never exceed the frictional force F. Otherwise the object would be in motion and this would be a kinetic friction case.

How to calculate coefficient of friction

  1. First, determine the net horizontal force acting on an object.

    Calculate the net force acting on a stationary or moving object.

  2. Next, determine the normal force acting on an object.

    When analyzing a single object with no extra vertical forces, the normal force should be equal to the weight.

  3. Calculate the coefficient of friction

    Calculate the coefficient of friction using the normal force and net horizontal force.

FAQ

What is a coefficient of friction?

A coefficient of friction is a term in physics use to describe the resistant force acting on an object due to it’s normal force and the two surfaces that are in contact.

What is the difference between static and dynamic friction?

Static friction is the force between stationary objects and dynamic friction is the force between moving objects.

coefficient of friction calculator

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