What Are Some Tips for Starting Moment Couple Problems?

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Homework Help Overview

The discussion revolves around moment couple problems in statics, specifically focusing on how to initiate problem-solving for scenarios involving rollers and forces. Participants are seeking guidance on the foundational steps required to analyze the given problems effectively.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the importance of drawing free body diagrams and summing forces and moments. There is a focus on understanding the relationships between forces acting on the rollers and how to set up the equations for moments.

Discussion Status

Some participants have provided hints and clarifications regarding the setup of equations and the interpretation of forces and moments. There is ongoing exploration of how to approach the problems, with various interpretations being considered. No explicit consensus has been reached, and participants continue to seek further clarification.

Contextual Notes

Participants express confusion regarding the initial steps in the problems, particularly in setting up moments and understanding the geometry involved. There are references to specific forces and their relationships, indicating a need for clarity on the assumptions made in the problem setup.

  • #31
Not sure what you are doing with the angles. Both moments act in the x-y plane, so there shouldn't be any \hat{k} involved. The first moment acts in the -x direction (- \hat{i}); the second moment is at a 60 degree angle to the x-axis (find the components of that vector: it will have both an x and a y component).
 
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  • #32
:rolleyes: ...yeah, I realized that after I stared at it for a while.

Thanks again for ALL the help. My internet died around 2:30pm yesterday so I couldn't get back on at all until this morning, so I basically had to stare at it for a while, ask a few people--and am pretty sure I got it.
 

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