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How i find friction between surfaces without using COF tester? 
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#1
Nov2712, 06:23 AM

P: 14

In the morning i get this idea ....the simplest way to determine friction force between two sliding surfaces.
http://www.youtube.com/watch?v=T2jWT9r2ZU&feature=plcp 


#2
Nov2712, 08:51 AM

Mentor
P: 11,576

The angle of the book changed between sliding and the angle measurement.
The method can give a rough approximation of the coefficient of static friction, but it should be done more carefully. 


#3
Nov2712, 10:06 AM

P: 1,969

Grat, you just (re)discovered the concept of "angle of friction".
Used in intro labs to estimate static and kinetic friction. 


#4
Nov2912, 08:59 AM

P: 14

How i find friction between surfaces without using COF tester?
ya ...but this is just a illustration
thanks for comments 


#5
Nov2912, 08:59 AM

P: 14

I will come back with come great videos ...



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