State the meaning of the term fluid friction.
Important Questions on Friction
A box is resting on the floor. To move it, a (variable) force is applied as shown in the diagram below.
Give the (likely) value of the force of limiting friction.
A box is resting on the floor. To move it, a (variable) force is applied as shown in the diagram below.
Why does the box stay at rest in the cases corresponding to Fig (a) and Fig (b)?
A box is resting on the floor. To move it, a (variable) force is applied as shown in the diagram below.
Mark the direction of frictional force, and mention the kind of frictional force that comes into play, in each case.
A ball is allowed to roll down an inclined wooden plane from a given height. At the foot of the inclined plane, it moves on a horizontal surface, differently 'covered', one by one, as shown in the following figures.
In which case, is the ball likely to move the longest distance? Give reason for your answer.
