Tension in Rope using Torque? Did I do this correctly?

AI Thread Summary
The discussion centers on understanding the tension in a rope using torque, specifically regarding the correct placement of the pivot point in relation to a beam and wall. The user confirms their pivot point is set at the beam's intersection with the wall. There is a repeated inquiry about the location of the beam's edge, indicating a need for clarity on this aspect. The response affirms the user's understanding, suggesting that their approach is correct. Overall, the conversation emphasizes the importance of accurately identifying pivot points in torque calculations.
kepherax
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Homework Statement
A wooden beam is suspended as shown below. The beam has a mass of 25 kg and has a length as shown. A sign is of mass 10 kg is to suspended from the beam at a distance of 2/3 from the edge of the beam. What is the tension in the rope?
Relevant Equations
Torque = |F||d|sin angle or r x F
joe.JPG


I think I understand but just want to check if I did this correctly, or if there is more to it...

20191010_133502.jpg
 
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Where's the 'edge' of the beam ?
 
BvU said:
Where's the 'edge' of the beam ?

I set the pivot point to be where the beam meets the wall, the block on the left is the wall.
 
Your answer is fine.
 
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