Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.

What is the coefficient of friction (μ)?

It's a dimensionless scalar value which describes the ratio of the force of friction between two bodies and the force pressing them together.

Difference between static and kinetic?

Static friction applies to objects that are not moving relative to each other. Kinetic friction applies to objects in motion.

Calculate Friction Force, Normal Force, or Coefficient of Friction.

Coefficient of Friction (μ)

0-1

Normal Force (N)

Newtons

Result

—N

Friction Force (f)

Physics Formulas

Friction

Coefficient

Normal Force

Frequently Asked Questions

How to Use

What it calculates

This friction computes physics quantities using established scientific equations. Static and kinetic friction.

When to use it

Use for coursework, lab work, and engineering estimates where quick accurate results are needed.

Example

Adjust the inputs above to model your specific scenario with the Friction.

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