How to draw a freebody diagram of a non ideal pulley

  • Thread starter Gorz
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Homework Statement


Just a quick question. Im not entirely sure how to draw an FBD of a pulley with Inertia.

Im doing a problem solving excercise for the atwood machine with two masses over a non ideal pulley and need to sketch its FBD.

Thanks
 

Answers and Replies

  • #2
Doc Al
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The important thing to show on a FBD of the pulley are the two rope tensions acting on it, since they are the only forces creating a torque on the pulley (assuming no friction). The key is that each side of the rope will have its own tension, so call them T1 and T2.
 

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