There is a limit beyong whichthe polishibng of a surface increases frictional resistancerather than decreasing it why

There is a limit beyong whichthe polishibng of a surface increases fri

1.	There is a limit beyong whichthe polishibng of a surface increases frictional resistancerather than decreasing it why
Answer» Solution :Friction is a contact force. Friction is directly proportional to area of contact. In the normal SURFACES there are bumps to interlock the surfaces in contact. But the surfaces are POLISHED beyond CERTAIN limit. The area of contact will be increased and the MOLECULES come closer to each other. It increases electrostatic force between the molecules. As a result it increases friction.