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Dry friction is also called _____________

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Dry friction is also called _____________

(a) Column Friction

(b) Coulomb Friction

(c) Dry column friction

(d) Surface friction

This question was posed to me in an interview for internship.

My enquiry is from Characteristics of Dry Friction topic in chapter Friction of Engineering Mechanics

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The correct option is (b) Coulomb Friction

For explanation: The dry friction is acted upon the surfaces. And they are tangential to each other. As we know the friction is the phenomena that define that there is a resistance which is present there between the two surfaces. The dry friction is also termed as the Coulomb friction as it was given by C.A. Coulomb.

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