Gently push a book or any object on a horizontal floor. It moves for a certain distance and stops due to the friction. The friction acts in the opposite direction of the force exerted. Now take the same object and do the activity on different surfaces smooth and rough.
The object moves a long distance on the smooth surface whereas it moves a little distance on the rough surface. We come across that the friction is more on the rough surface and less on the smooth surface due to the reduction in the sliding friction.
