explain the cause of friction?
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commonly as we can see the cause of friction is roughness of surface that resist the motion of surface...
due to this resistive force in friction or we can say that due to that frictional force the heat energy is produced...
i hope it will help u..
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Causes of friction :-
♥ Adhesion is a molecular force that arises when two materials are brought close to each other .
♥ Surface roughness is a factor in friction when the materials are rough enough to cause serious abrasion .
♥ When one or more of the materials are relatively soft , much of the resistance to movement is caused by deformations or a plowing effect .
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