A box is resting on the floor. To move it, a (variable) force is applied as shown in the diagram below. (a) Give the (likely) value of the force of limiting friction. (b) Why does the box stay at rest in the cases corresponding to Fig (a) and Fig (b)? (c) Mark the direction of frictional force, and mention the kind of frictional force that comes into play, in each case.
(i) More than 2f and less than 3f.
(ii) It is because the force applied is less than that of the limiting friction as in figure (a) and figure (b).
The direction of the frictional force is always opposite to the motion of box in given figure.
The kind of frictional force that comes into play, in
- Case a-Static Friction
- Case b-Static Friction
- Case c-Sliding Friction