Ok so for a school project I'm trying to work out the static friction coefficient of the pages of my notebook by interleaving two notebooks together and adding weights to it until it separates. Look at left figure on pic.
Here's the measurements:
>Max weight is approx. = 70 N
>d = 0.048 m
>Each notebook has thickness of 0.003 m, 30 pages, therefore 0.0001 m per page
This should be all that I need to work out the friction coefficient.
Now, I tried working it out by splitting the diagram down the middle and working out the perpendicular tension forces in each half which are equal to the normal forces and the parallel tension forces are equal to the weight force so I thought I could work out the friction coefficient that way, but I got an absurdly high number around 30 which I'm guessing is way off the mark for a static friction coefficient between paper.
Here's the measurements:
>Max weight is approx. = 70 N
>d = 0.048 m
>Each notebook has thickness of 0.003 m, 30 pages, therefore 0.0001 m per page
This should be all that I need to work out the friction coefficient.
Now, I tried working it out by splitting the diagram down the middle and working out the perpendicular tension forces in each half which are equal to the normal forces and the parallel tension forces are equal to the weight force so I thought I could work out the friction coefficient that way, but I got an absurdly high number around 30 which I'm guessing is way off the mark for a static friction coefficient between paper.
