pick up wrong statement about friction force for dry surfaces. friction force is Options: A . &nbsp proportional to normal load between the surfaces B . &nbsp dependent on the materials of contact surface C . &nbsp proportional to velocity of sliding D . &nbsp independent of the area of contact surfaces

pick up wrong statement about friction force for dry surfaces. friction force is

Question

Pick up wrong statement about friction force for dry surfaces. friction force is

Options:

A . proportional to normal load between the surfaces

B . dependent on the materials of contact surface

C . proportional to velocity of sliding

D . independent of the area of contact surfaces

Answer: Option C

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