torque sample problem with solution

I take you through a worked solution of a torque problem

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[zlatanibrahimovic]

This setup is interesting. I’m guessing it’s a glass whiteboard with the camera reversing the image? Either that or you’re a very talented backwards drawer.

[meetjr.]

Hello sir, I am student of class 11 and I saw your video related to torque topic and I loved it.

[LakshmipathyBesta]

Please tell me why you chose its 60 in place of 30 degree angle

[craigrussell]

the pulley turns clockwise, but isnt the direction of the torque into the page according to RH rule?

[limon_]

Hey, it is clockwise then should be negative or am i wrong, because counterclock wise is positive.