Question

In which direction friction will act if we apply a force on an object

Answer 1

Explanation:

the force of friction acts in opposite direction. If the direction of motion is reversed and the block moves in the direction AC, the force of friction 'f' is reversed and acts opposite to AC. Friction is a surface phenomenon. The surface of a body has some irregularities however smooth it may be.

Answer 2

Answer:

The normal force is one component of the contact force between two objects, acting perpendicular to their interface. The frictional force is the other component; it is in a direction parallel to the plane of the interface between objects. Friction always acts to oppose any relative motion between surfaces.

Explanation:

I hope it helps you.....