|Jan9-05, 06:53 PM||#1|
Where does the equation F (force of friction) = uN (Muu times normal force)
come from? How do you derive the u?
|Jan9-05, 07:42 PM||#2|
derive? it is a property of substance.... the easiest way is doing an experiment....
|Jan13-05, 09:24 PM||#3|
It comes from a good sounding phrase:
"The force of friction is proportional to the normal force"
This is translated in to f = mN.
It isn't really worth anything to anyone, other then to show introductory students how complex phenomena can begin to be model. It is semi valid as a engineering rule, and good for teaching.
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