What causes friction between two seemingly smooth surfaces

Asked by maham237 @ 13/01/2021 in Physics viewed by 364 People

What causes friction between two seemingly smooth surfaces?
A.The surfaces really aren't smooth. It's just an illusion.

B.Surfaces that are too smooth tend to stick together.

C.Tiny collisions on the surfaces, called microwelds, cause friction.

D.There is an invisible force sticking the surfaces together.

Answered by maham237 @ 13/01/2021

B.Surfaces that are too smooth tend to stick together.

Explanation:

What causes friction between two seemingly smooth surfaces is that surfaces that are too smooth tend to stick together.

Friction is resistance to movement or flow.

When two surfaces are smooth, their atoms and molecules come into contact.
this allows for the interaction between the surfaces of the two materials.
chemical interactions leads to substances adhering together using cohesive forces.
this in turn restricts motion.

Learn more:

Friction brainly.com/question/7174363

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