Define the force of friction describe all the factors affecting friction.
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Frictional force depends on the nature of the surface in contact. The rougher the surface, the greater the friction involved. Frictional force is proportional to the pressing force, which is the weight of the body. It is independent of the area of contact.
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Answer :
Friction :
Friction is a respective force, which come into place when there is a relative motion between two bodies in contact.
The frictional force between two bodies depends mainly on three factors :
(1) The adhesion between body surface.
(2) Roughness of the surface.
(3) Deformation of bodies.
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