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Coulomb friction is the friction between ?

ATwo dry surfaces

BTwo lubricated surfaces

CBodies having relative motion

DSolids and Liquids

Answer:

A. Two dry surfaces

Read Explanation:

1. Coulomb friction is the friction between two dry surfaces. Coulomb's law states that the tangential friction force is proportional to the normal contact force, and is independent of relative tangential velocity. The friction force acts opposite to the relative motion and is proportional to the normal load on the contact. The friction force is also independent of the normal area of contact.


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