Question

9) On what, force of the friction depends B) All of these B) Smoothness of surface C) Roughness of surface D) Inclination of the surface 10) Fluid are​

Answer 1

Answer:

HELLO !!!

C) Roughness of surface

Explanation:

roughness always makes friction come and a devil

Answer 2

Answer:

B} roughness of surface

Explanation:

.