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
Messages
10
Reaction score
0
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...
 
Physics news on Phys.org
welcome to pf!

hi tratata! welcome to pf! :smile:

(try using the X2 button just above the Reply box :wink:)
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!
 
Thread 'Struggling to make relation between elastic force and height'

Thread 'Struggling to make relation between elastic force and height'

Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how it was given to me in my script) with the thought of instead of having two part of a rope id have one singular rope from the middle to the top where I could find the difference in height. But the...
View full post »
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »

Similar threads

Static Friction Between a Box and the Floor
Replies
11
Views
3K
Friction Required for Billiard Ball to Roll without Slipping
2
Replies
60
Views
4K
Stopping distance and static friction
Replies
1
Views
4K
How do I properly set up this F.B.D.?
Replies
1
Views
1K
How do i find the coefficient of static friction?
Replies
2
Views
2K
Truck carrying a box, friction problem
Replies
10
Views
5K
Rolling without slipping and coefficient of friction
Replies
2
Views
6K
Static friction and a rotating object
Replies
14
Views
2K
Find min/max accel. for block to stay on wedge (static fric)
Replies
1
Views
2K
Static Friction -- A ladder leaning against a wall starts to slip
Replies
13
Views
6K

Hot Threads

Recent Insights

Back
Top