- #1
How to solve a problem like this
- Thread starter gallimaufry
- Start date
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Homework Help Overview
The discussion revolves around a problem involving torque and balance, specifically focused on determining the mass of an object on one side of a balance scale. The original poster is seeking assistance in solving for an unknown mass, given certain known quantities such as the mass on the opposite side, the angle of the balance, and the distances from the fulcrum.
Discussion Character
- Exploratory, Assumption checking, Conceptual clarification
Approaches and Questions Raised
- Participants are discussing the setup of the problem, including the known and unknown variables. Questions about the specific details of the problem and the assumptions being made regarding torque and equilibrium are raised.
Discussion Status
The conversation is ongoing, with participants clarifying the problem's context and exploring the implications of the known variables. Some guidance has been offered regarding the principles of torque and equilibrium, but no consensus or resolution has been reached yet.
Contextual Notes
There is mention of the original poster's inexperience in posting, which may affect the clarity of the problem presented. Additionally, the angle of the balance and its relevance to the measurements is under discussion.
- #2
Doc Al
Mentor
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What exactly is the problem you are trying to solve?
(Is this a continuation of your existing thread? Here: https://www.physicsforums.com/showthread.php?t=280904)
(Is this a continuation of your existing thread? Here: https://www.physicsforums.com/showthread.php?t=280904)
- #3
gallimaufry
- 6
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I guess it is a continuation, but i just wanted to draw out the problem. I am trying to solve for the unknown mass which is placed on one side of the balance. The things i know are the mass of the object on the other side, the angle the unbalanced balance is at, the distances the objects are from the fulcrum. If I posted incorrectly, forgive me it is my first time, and i will get better. Thanks for all the help
- #4
tiny-tim
Science Advisor
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gallimaufry said:
Hi gallimaufry!
Yes, it's torque (or moment) …
in equilibrium, the moment on each side must be the same
(but the angle makes no difference … the only reason why you have to get the scale arm horizontal when you're weighing is because you must use the same fulcrum point each time, and the fulcrum isn't a perfect point)
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