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Unread 31-12-2002, 14:34
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Re: Friction as a function of area ANSWER

Quote:
Originally posted by Gadget470
f = uN is equivalent to f = u (P * A) because Normal Force = Pressure * Area
Well, I've never liked pressure so I'll use my own formula. Static friction is the force due to partial cold-welding of the two surfaces, so I think the formula should be 'f=u*N*A*c' where c is an experimentally derived constant equal the amount of cold-welding per unit area. With c being measured in 1/m^2 and A measured in m^2, the units cancel out. My formula seems logical, but I am not responsible for any injuries that are a result of an incorrect formula .
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