Question

Explain with the help of an activity that friction depends upon roughness and smoothness of the surface in contact.

Answer 1

Answer:

• Friction depends on the smoothness or roughness of the two surfaces which are in contact with each other...
• When the two surfaces in contact are very rough, then the friction between them will be very large because the interlocking of very rough surface is too much. Activity. Place a brick on the floor.

Answer 2

Answer:

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Explanation:

Friction depends on the smoothness or roughness of the two surfaces which are in contact with each other. ... b)When the two surfaces in contact are very rough, then the friction between them will be very large because the interlocking of very rough surface is too much. Activity. Place a brick on the floor.