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Question #78811

Civil Engineering

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

E) E. none of the above is wrong statement

Answer: Pick up wrong statement about friction force for dry surfaces. Friction force is proportional to velocity of sliding.

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