Engineering Howe truss analysis using Ritter's method of sections

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The discussion revolves around a Howe truss analysis using Ritter's method of sections. The original poster acknowledges a mistake in their calculations, which was corrected, leading to accurate results. Updated images were provided to reflect the correct answers. Participants are invited to ask further questions or discuss the problem, but there is no additional interest expressed. The conversation concludes with a confirmation that no further inquiries remain.
Kiblur
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Homework Statement
Using Ritter's method of sections, determine the forces in BD, BE and CE
Relevant Equations
EM=0
1.png
2.png


I had made a silly inattention mistake. Once corrected everything worked out. I have updated the pictures to show the correct answer.
 
Last edited:
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Do you still have any question or thing to discuss about this problem?
 
No I dont!
 
Thread 'Why wasn’t gravity included in the potential energy for this problem?'

Thread 'Why wasn’t gravity included in the potential energy for this problem?'

I’m looking at the attached vibration problem. The solution in the manual includes the spring potential energy but does NOT include the gravitational potential energy of the hanging mass. Can someone explain why gravitational potential energy is not included when deriving the equation of motion? I tried asking ChatGPT but kept going in circles and couldn't figure out. Thanks!
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