Coulomb’s Law of Friction

Coulomb's Law of Friction

This law is termed Coulomb’s law of friction and is also sometimes referred to as Amontons’ third law of friction.

The law states that for two dry solid surfaces sliding against one another, the magnitude of the kinetic friction exerted through the surface is independent of the magnitude of the velocity (i.e., the speed) of the slipping of the surfaces against each other.

Note that the direction of the kinetic friction does depend on the direction of the velocity — it is precisely the opposite direction.

Coulomb’s law of friction is part of the Coulomb model of friction, a model for the behavior of frictional forces between two dry solid surfaces in contact.

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Satya Prakash

Mr. Satya Prakash is a research scholar.

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