Three masses suspended by cables: Force Question: HELP PLEASE

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Homework Help Overview

The discussion revolves around a problem involving three masses suspended by cables, with the goal of finding the tension in each cable. The subject area includes concepts of forces and weight calculations in physics.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to calculate the tension in each cable using the weight formula, W=mg, and expresses confidence in their calculations. Some participants question the adequacy of the lecture material that preceded their attempts.

Discussion Status

The discussion includes a request for validation of the calculations presented by the original poster. One participant confirms the correctness of the calculations, but there is no further exploration of the underlying concepts or assumptions.

Contextual Notes

The original poster expresses urgency due to a looming deadline, indicating a time constraint that may affect the depth of the discussion.

djumper168
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Homework Statement



Three masses are suspended by cables as shown. Find the tension in each cable.

Picture:

2drz8gm.jpg


Homework Equations



W=mg

The Attempt at a Solution



T1: W= mg
= 15 kg x (9.8 m/s^2)
= 147 N

T2: W= mg
= 11kg x (9.8m/s^2)
= 107.8 N

T3: W=mg
=5kg x (9.8m/s^2)
= 49 N


Is this right? I'm pretty confident in it, but the lecture I watched before attempting this among several other problems wasn't very helpful. Thank you!
 
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Bump? This homework is due in less than 2 hours and I'm stressing that I'm going to get it wrong.
 
Yes, that looks correct.
 
Thank you.
 

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