»Friction acts in a direction Opposite to the motion of the body. For example, When a box is slides over another box, due the the molecular interactions b/w the surfaces of the two boxes and the pits and bumps on them, friction is produced which tends to oppose the motion
»Friction is a force that occurs when two surfaces slide past one another. The force of friction opposes the motion of an object, causing moving objects to lose energy and slow down.
