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Forums
Physics
Classical Physics
Mechanics
Static coefficient of friction decreasing with normal force?
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[QUOTE="mfb, post: 5736317, member: 405866"] If all your mass values would actually be 4 kg higher, you would get a constant force to mass ratio. That looks quite odd, and more values in between would help to see what is going on. As long as that is proportional to the force, it doesn't increase the coefficient of friction. Rubber can deform, that could change the shape of the contact area, and therefore the angle between that and your pulling direction. [/QUOTE]
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Forums
Physics
Classical Physics
Mechanics
Static coefficient of friction decreasing with normal force?
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