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The coefficient of kinetic friction is ____________ than coefficient of static friction.

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The coefficient of kinetic friction is ____________ than coefficient of static friction.

(a) Smaller

(b) Larger

(c) Significantly larger

(d) Highly larger

I had been asked this question by my college director while I was bunking the class.

This intriguing question comes from Characteristics of Dry Friction in portion Friction of Engineering Mechanics

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Right answer is (a) Smaller

The best explanation: The coefficient of kinetic friction is smaller than the coefficient of static friction. The main thing about the kinetic one is that it is applied by the surface when the body is in motion. The static one is applied to the body when the body is static and is about to move.

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