Question

on which factors friction depend? explain the factors.

Answer 1

The friction force depends on two factors:

a) The materials that are in contact. The two materials and the nature of their surfaces. ...b) The force pushing the two surfaces together. Pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other.
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Answer 2

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$\implies$The factors on which friction depends are:

A. Nature of the surface in contact (shape, smoothness): For example; pushing a heavy box on a cemented floor is easier than the grass as cemented floor is smoother and smooth surfaces offer less friction.

B. Weight of the body: Pushing a lighter box is easier than a heavier one as friction depends on the force with which two bodies in contact are held together. The force with which a body presses down the other is its weight.

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