Physics · Mechanics
Which of the following statements is NOT correct regarding friction?
- 1The force of friction always acts in a direction opposite to that in which the body tends to move.
- 2The force of friction is independent of the area of contact between the two surfaces.
- 3The magnitude of the limiting force of friction is exactly equal to the force which tends to move the body.
- 4The force of friction does not depend upon the roughness of the surfaces.✓
Correct answer
The force of friction does not depend upon the roughness of the surfaces.
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