Question

What is coefficient of friction

Answer 1

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Answer 2

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For qualitative definition Coefficient of friction is defined as the level of roughness or smoothness of a surface. Higher the coefficient of friction higher the roughness. The coefficient of friction value 0 indicates fully smooth surface.

For quantitative definition, its defined as the ratio of frictional force acting on between two surface to the normal reaction between two surface.

Its also defined as the tan value of the angle made by the surface to the ground at which ,when another surface placed over it starts sliding. The tan value of that angle is the coefficient of friction between the two surfaces.

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