Question

Friction force does not depends on

4 points

A) Roughness of surface

B) Normal reaction on body

C) Net force on body

D) Mass of body

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Answer 1

Answer:

Explanation:

Friction does not depend on the amount of surface area in contact between the moving bodies or (within certain limits) on the relative speed of the bodies. It does, however, depend on the magnitude of the forces holding the bodies together.

So option is B

Answer 2

Answer:

ans :

Explanation:

normal reaction on a body ...