Question

pls answer this question faast​

Answer 1

Answer:

Frictional Force is a force which opposes the motion of an applied force.

For example, if we push a car in the forward direction, frictional force is applied by the ground in the opposite motion of the car, which is the backward direction.

According to your question,

All the three spools have applied force in the same direction, but the position of the applied force is changing.

Frictional force depends only on direction of applied force and not the position. Hence all the spools will experience a frictional force towards backside.

Hence Statement (D) is wrong.