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-   -   How i find friction between surfaces without using COF tester? (http://www.physicsforums.com/showthread.php?t=655153)

ParamTv Nov27-12 06:23 AM

How i find friction between surfaces without using COF tester?
 
In the morning i get this idea ....the simplest way to determine friction force between two sliding surfaces.
http://www.youtube.com/watch?v=T2jWT9r2Z-U&feature=plcp

mfb Nov27-12 08:51 AM

Re: How i find friction between surfaces without using COF tester?
 
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.

nasu Nov27-12 10:06 AM

Re: How i find friction between surfaces without using COF tester?
 
Grat, you just (re)discovered the concept of "angle of friction".
Used in intro labs to estimate static and kinetic friction.

ParamTv Nov29-12 08:59 AM

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

ParamTv Nov29-12 08:59 AM

Re: How i find friction between surfaces without using COF tester?
 
I will come back with come great videos ...


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