Which of the following statement is NOT true with respect to Laws of Static Friction?
1
The force of friction depends upon the area of contact between the two surfaces.
2
The magnitude of the force of friction is exactly equal to the force, which tends to move the body.
3
The force of friction depends upon the roughness of the surfaces.
4
The force of friction always acts in a direction, opposite to that in which the body tends to move if the force of friction would have been absent.
5
None of the above