Calculating Static Friction Coefficient w/ Angle of Uniform Slip

AI Thread Summary
The discussion centers on calculating the coefficient of static friction (μs) using the angle of uniform slip (θ). It clarifies that the correct relationship is tanθ = μs, contrasting it with the kinetic friction equation tanθ = μk. Participants express gratitude for the clarification, emphasizing the importance of distinguishing between the angles for static and kinetic friction. The conversation highlights a common confusion in understanding friction coefficients. Understanding this relationship is crucial for accurate calculations in physics.
tratata
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How do you use the angle of uniform slip to calculate the coefficient of static friction?
Is there an equation for this? I cannot find it in the module on friction provided with the course... thanks!

I found somewhere that tanθ=μk, but that doesn't really help me, as i am looking for μs! thanks :)

PS sorry if this is a really stupid question by the way...
 
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hi tratata! welcome to pf! :smile:

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tratata said:
How do you use the angle of uniform slip to calculate the coefficient of static friction?
…
I found somewhere that tanθ=μk, but that doesn't really help me, as i am looking for μs!

it's tanθ = μs (different θ, of course!), and for the same reason

i suppose you can prove why? :wink:​
 


Thank you so very much tiny-tim! I really appreciate your help with this! It makes sense now when you pointed out the difference in angle!
 

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