Moment of Inertia: Homework Help for Emma

AI Thread Summary
The discussion focuses on calculating the tension in a system involving a bar and a pulley, using the moment of inertia formula. The moment of inertia for a bar pivoted at one end is given as mL^2/3. Participants suggest drawing free body diagrams to visualize forces and applying the equations of motion (f=ma) to solve for tension. Emma expresses difficulty in determining the tension due to the mass on the opposite side of the pulley. Clear guidance on diagramming and applying relevant equations is emphasized for finding the solution.
EmmaJ1989
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Homework Statement


Picture1.png



Homework Equations


Moment of Inertia at one end of a bar = mL^2/3
Sum of Moments around point A = Moment of Inertia at point A x angular acceleration (alpha)


The Attempt at a Solution


I have a few different equations with the variables replaced accordingly but I am having trouble finding the tension holding the bar up due to the mass on the other side of the pulley.

Thanks!
Emma
 
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Draw free body diagrams and use your equations for f=ma
 

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