Question

2. Polishing a surface beyond a certain limit may increase friction? why?


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Answer 1

friction arises due to molecular and have some more precious Lily due to electrostatic force the roughness of surface plays a role when the bumps Hills and valleys are big enough to lock the surface each other and avoid motion but when the surface of earth abolished the bumps become even and the surface or of contact increase the surface molecules are able to closer to each other as a result the electrostatic force adhesion between the atoms of the surface increases