friction is independent of what factor?
Answers
Answer:
The friction force depends on two factors:
a) The materials that are in contact.
b) The weight of the object or the amount of force on the surface by the object.
Explanation:
To explain the first point -
The two materials and the nature of their surfaces. Rougher surfaces have higher coefficient of frictions but to slide apart.
To explain the second point -
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.
Answer:
area of contact surfaces