Prove that the force of friction depends on the nature of two surfaces in contact.

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Solution

Friction depends on the nature of the two surfaces. It depends on smoothness or roughness of the two surfaces which are in contact of each other. When two surfaces are in contact are smooth, then the friction between them is small because the interlocking of smooth surface is less. When two surface is rough then the friction is more because the interlocking is very strong in very rough surface.

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Similar questions

Q. Give examples to show that friction depends on the nature of two surfaces in contact.

(a) Given examples to show that firction depends on the nature of two surfaces in contact.
(b) Give an example to show that friction depends on the force with which the two surfaces are pressed together.

How does friction depends on the nature of the surfaces in contact??

Q. Both viscosity and friction that oppose relative motion, arise from intermolecular forces and depend on the nature of surfaces in contact.

Q. STATEMENT-1
It is easier to pull a heavy object than to push it on a level ground.
STATEMENT-2
The magnitude of frictional force depends on the nature of the two surfaces in contact.

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