Question

What is Friction?

Answer 1

Friction:

1. Friction is an external force that opposes the relative motion of two contact areas. Friction occurs at the point of contact between the two bodies.
2. Relative motion occurs whenever one item travels relative towards another.

Causes of friction:

1. Friction is caused by the surface imperfections of the two objects throughout contact: While seen at a microscopic level, all surfaces feature hills and valleys that interconnect whenever moving as well as rubbing against one another. Surface imperfections are the name given to such surface abnormalities. Rough surfaces have more irregularities, whereas smooth surfaces have fewer irregularities.
2. Adhesive forces across surfaces of contact: Whenever two surfaces come into touch, bonds develop and the surfaces start to stay collectively. It is known as the Adhesion phenomenon. Whether individuals try to stack items on top of one another, we eventually weaken the bonds as well as defeat the adhesive forces.
3. Plowing effect: When delicate or readily deformed coatings come into touch with another substance, they get distorted.