railway RRB JE (CBT I + CBT II) Mock Test 2024 Engineering Mechanics Equilibrium and Friction Friction
Pick - out the FALSE statement for static friction.
1
The force of friction is dependent on the area of contact between the two surfaces
2
The force of friction depends upon the roughness of friction
3
The magnitude of force of friction is exactly equal to the force, which tends to move the body
4
The force of friction always acts in a direction, opposite to that in which body tends to move, if the force of friction would have been absent