Question
Download Solution PDFThe direction of the friction force is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Friction force:
- The frictional force exits when two surfaces come in contact and it tries to stop the relative motion between the two surfaces.
- The body can move relative to the surface when the external force applied to the body exceeds the frictional force.
- The frictional force acts in the opposite direction of the motion of the body.
\(F=μ N \)
Where,
F = frictional force (N), μ = coefficient of friction, N = normal force acting on the body (N)
- The frictional force depends upon the coefficient of friction and normal force.
- The coefficient of friction depends upon the nature of the surface in contact.
- So, the frictional force also depends upon the nature of the surface in contact.
- The coefficient of friction increases with an increase in the roughness of the surface, hence frictional force also increases accordingly.
- Also, the frictional force doesn't depend upon the area of contact between the surfaces.
Thus, option (1) is the correct answer.
Last updated on May 28, 2025
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