- #1
zack7
- 52
- 0
I can seem to get the answer of 60N and 125mm from C
Thank you for the help
Thank you for the help
Click For Summary
Discussion Overview
The discussion revolves around a statics problem involving moments in a couple, specifically focusing on calculating forces and their moments in a system with multiple forces. The scope includes problem-solving and conceptual understanding related to statics in physics.
Discussion Character
- Homework-related
- Technical explanation
- Conceptual clarification
Main Points Raised
- One participant claims to have calculated a force of 60N and a distance of 125mm from point C but does not provide details on the method used.
- Another participant encourages sharing attempted solutions to better assist with the problem.
- A participant expresses uncertainty about solving the problem, noting the presence of two forces (one clockwise and one anticlockwise) that should cancel each other out, but provides conflicting moment values of -24Nm and 7.5Nm.
- A later reply corrects the participant by stating there are actually three forces involved and suggests finding a single equivalent force of 60N that produces the same moment as the original forces, while questioning the source of the moment values provided.
Areas of Agreement / Disagreement
Participants do not appear to reach a consensus, as there are conflicting interpretations of the forces and moments involved, and uncertainty remains regarding the calculations and methodology.
Contextual Notes
There is a lack of clarity regarding the definitions of forces and moments, as well as the assumptions made in the calculations. The discussion does not resolve the discrepancies in the moment values provided.
- #2
tiny-tim
Science Advisor
Homework Helper
- 25,837
- 258
hi zack7! 
show us what you've tried, and where you're stuck, and then we'll know how to help!
show us what you've tried, and where you're stuck, and then we'll know how to help!
- #3
zack7
- 52
- 0
tiny-tim said:hi zack7!
show us what you've tried, and where you're stuck, and then we'll know how to help!
I actually do not really know how to solve the question.
I now that there is two forces one clockwise and another anticlockwise and they both suppose to cancel each other out when I calculate the moment but for one I am getting -24Nm and the other 7.5Nm. After that I am not very sure what to do?
Thank you
- #4
tiny-tim
Science Advisor
Homework Helper
- 25,837
- 258
hi zack7!
no, there are three forces, you have to find a single force with the same total value (obviously, it's going to be 60N directly down the page), and you have to find the point on CD where that new 60 N has the same moment (about anywhere) as the total moment of all three original forces …
(and I'm not following where you got -24Nm or 7.5Nm from
)
zack7 said:
no, there are three forces, you have to find a single force with the same total value (obviously, it's going to be 60N directly down the page), and you have to find the point on CD where that new 60 N has the same moment (about anywhere) as the total moment of all three original forces …
what do you get?
(and I'm not following where you got -24Nm or 7.5Nm from
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