Why area of surface has no role in motion due to friction, Physics

Friction is a microscopic constant and so macroscopic level area does not matter.

But area would matter if the object we''re putting under study was microscopic, which isn''t in our case.

Posted Date: 3/12/2013 1:49:49 AM | Location : United States





Because friction depends only on cofficient of friction and roughness of the surfaces and it is independent of the area b/w the surfaces

Posted by | Posted Date: 3/12/2013 1:50:16 AM


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