Question

1.
When a body slides over smooth and wet surfaces,
the amount of interlocking of irregularities, of the two
surfaces in contact, increases.​

Answer 1

Explanation:

Irregularities on surfaces: Friction is created because of irregularities on surfaces. The irregularities on surfaces result in interlocking of two surfaces. The interlocking between two surfaces creates friction. Hence, the force of friction will be greater in case of rough surface than in case of smooth surface.

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