Kinetics pulley example problem with a friction surface

This tutorial goes over an example with a kinetic pulley and a friction surface. The general method is very similar to simple Atwood machine problems, you just have to consider the force of friction as well in the force balance of the block in contact with the surface. But otherwise, both blocks will share a common magnitude acceleration in their respective directions of travel, and the tension will also be the same acting on each block.

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Thanks for watching, I hope it helps!

[Abigail-gppf]

What the heck, why did my teacher never do it this way. IT MAKES SO MUCH MORE SENSE

[inhinyerongsibil]

very well explained and presented. Thou im now registered engineer, this topic refreshes my knowledge which is a great help to everybody

[elliejohnson]

My friend thinks of me as the smart math person, so this video was very helpful when they ambushed me with a pulley question that I hadn't done in years.

[VisuallyWarped]

Thank you for this amazing video! Doing 12U physics at the moment and math is not my strong suit. But you made this simple :)

[ItsDanielStar]

i love you, very simple and easy to comprehend

[sayedfareen]

Thank you so much ...I was so confused as my teacher was making it complex ...

[RandomCorner]

Awesome video man I couldn't find any explanations before I stumbled upon this

[Leadership_matters]

One of the hurdles my students run into is that tension is positive on one block but negative on the other. I had to simplify it even more if they don't get it at first. But they eventually get it.

[hugurs]

acceleration = (weight2 - Kinetic Friction) / (mass1+ mass2)

[MATHMAN-qzde]

question is it possible for the tow bodies to have different magnitude accelerations? like one has a 4 m/s^2 and the other -1.2m/s^2. and is there a difference to find the acceleration of the system

[drewchmieleski]

Hey Engineer4Free! I'm doing that exact problem but with different masses, but the coefficient of friction isn't given to me. How am I supposed to solve this?

[dylanbeard]

Why is it w - T = ma and not T - w = ma? Wouldn't the weight be in the negative y direction?

[nortezarioraveliic.]

I think there's something wrong; you didn't plug in the (-) sign in W-T=ma, how come T=W-ma? @3:23

[abdullahsiddiqui]

Hi man, I want to really ask about how make your videos. I also teach engineering statics but my lectures aren't in english. I would like some tips on how to make videos like you.