What do you understand by the friction?What are the factors that affect friction?
Answers
Friction friction friction
IT sm
Answer:
Frictional force actually reduces the relative motion of a body. Various factors which affect friction are: Smoothness of surface:-more the surface is smooth, less is the friction.Friction basically depends on two factors, the friction coefficient and the normal force by the surface on which the body is resting.
Explanation:
Friction depends partly on the smoothness of the contacting surfaces, a greater force being needed to move two surfaces past one another if they are rough than if they are smooth. However, friction decreases with smoothness only to a degree; friction actually increases between two extremely smooth surfaces because of increased attractive electrostatic forces between their atoms. Friction does not depend on the amount of surface area in contact between the moving bodies or (within certain limits) on the relative speed of the bodies. It does, however, depend on the magnitude of the forces holding the bodies together. When a body is moving over a horizontal surface, it presses down against the surface with a force equal to its weight, i.e., to the pull of gravity upon it; an increase in the weight of the body causes an increase in the amount of resistance offered to the relative motion of the surfaces in contact.
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