About Friction force in physics:

Friction is distinct as the intensiveness which opposes the person happening between two surfaces which are in contact with apiece otherwise. There are three types of friction force, namely static friction, dynamic friction and rolling friction

Both coefficient of limiting detrition and coefficient of sliding exertion depend on the nature and the assumption of the surfaces, which are in happening but are independent of the area of representative. For more learning get help from free online physics tutor. For poise surfaces in striking coefficient of limiting exertion is 0.8 and between plastic surfaces coefficient of limiting detrition is 0.04.

Theoretically, if surfaces are acknowledged to be dead velvet, there is no frictional unit and coefficient of limiting effort and coefficient of sliding effort are both digit.

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