5. Does area of contact affect frictional force explain briefly?
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You could say that when two surfaces come near each other (call them surface A and surface B), the atoms in surface B get close enough to interact with surface A. The more atoms that are interacting in the two surfaces, the greater the total frictional force. ... Greater contact area means greater frictional force
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Yes it affects frictional force because the more the area in contact more the friction
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