Frictional Forces on Flat Belts EXAMPLE PROBLEM // Step by step, simple explanation

In this video I go through an example problem involving the concepts of frictional forces on flat belts. A rope is wrapped around a pole and we need to find out how much force it will take to start pulling up a weight attached to the other end of the rope. In order to do this we need to find the coefficient of static friction between the rope and the pole. Using the equations we have, we can find out what all of these variables are.
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[@kasiorap]

super underrated, super chill channel! keep it up

[@studentengineering]

I’m glad!

[@mazenmostafa4166]

Bro thank you so much ❤️.. Form Egypt keep going ❤️🤝

[@studentengineering]

You’re welcome!

[@alyssamohammed257]

your awesome, very smart and dedicated. instantly subbed

[@studentengineering]

Thank you!

[@quailland1982]

very good video, I understand this a lot better now, its actually not that hard at all!

[@studentengineering]

I’m glad!

[@AlaminHossain-jd1mp]

Sir, if we were unable to determine the weight to find out which is large force , then how can we determine T1 and T2?

[@studentengineering]

You need the weight or at least some other information to be able to solve the problem.

[@hishamsaadaldeen6717]

Hello there, can u plz explain how did u get the second equation? (ln (T1/T2) = mB )

[@studentengineering]

Great question! I go over that in this video: Frictional Forces on Flat Belts Explained // Equations and Explanation kzbin.info/www/bejne/d3OQgKupodxso6s

[@jordyb4862]

What if the pole can rotate with some friction, how does that change the dynamics? If the friction of the rope is greater than the pole does only the pole friction matter after that?

[@studentengineering]

Great question! I’m not exactly sure but it would definitely matter how easily the pole could rotate. I would think that if the pole could rotate freely then there would be no slipping between the pole and the rope. If the friction preventing the pole from freely rotating was greater than that of the friction between pole and the rope then the pole would probably rotate while the rope was also slipping around it. You would probably need to find the friction force from the rope and see when it matched the friction force of the pole rotating.