Question

force of friction depends on roughness or smoothness of the surfaces true or false​

Answer 1

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Explanation:

Frictional force depends on the nature of the surfaces in contact and increases with the increase in the roughness of the surface. Friction is due to interlocking between the molecules of the surfaces as no surface is perfectly smooth.

Answer 2

Answer:

     TRUE

Frictional force depends on the nature of the surfaces in contact and increases with the increase in the roughness of the surface. Friction is due to interlocking between the molecules of the surfaces as no surface is perfectly smooth.

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