Finding Equilibrium in a Three-Pulley System

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Homework Help Overview

The problem involves a three-pulley system where the original poster seeks to determine the necessary masses for equilibrium, given specific angles and a known mass. The context is related to mechanics and equilibrium conditions in physics.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants express uncertainty about the problem's setup, questioning the clarity of the description and the absence of a visual representation. There are attempts to clarify the configuration of the pulleys and masses involved.

Discussion Status

The discussion is ongoing, with participants seeking clarification on the problem's details. Some have attempted to visualize the system through figures, but there remains a lack of consensus on the interpretation of the setup.

Contextual Notes

There is a noted absence of a figure accompanying the problem statement, which participants feel is crucial for understanding the system's configuration. The original poster has provided limited information, which may affect the ability to analyze the problem effectively.

crewss2015
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Homework Statement


Place 0.150kg (including the mass of the hanger) at a position somewhere between 0 degrees and 90 degrees. (I chose 45 degrees for this problem.) Place the second pulley at exactly 180 degrees and the third pulley at exactly 270 degrees. Determine how much mass you must place on the second and third pulleys for the system to be in equilibrium.
I am really not sure about how to approach this problem, any help would be greatly appreciated. Thank you!

Homework Equations

The Attempt at a Solution

 
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Is there a figure that goes along with this problem statement? Put yourself in our place. Do you really think we can figure out what the system looks like from what you've written? We're good, but we're not mind readers.

Chet
 
Chestermiller said:
Is there a figure that goes along with this problem statement? Put yourself in our place. Do you really think we can figure out what the system looks like from what you've written? We're good, but we're not mind readers.

Chet
Hi, here is my attempt to solve the problem. I have drawn the figure in the attachment. The information stated above was the only information given in the problem.
 

Attachments

  • vectorproblem.jpg
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crewss2015 said:
Hi, here is my attempt to solve the problem. I have drawn the figure in the attachment. The information stated above was the only information given in the problem.
Sorry, I still don't follow the description. Maybe someone else can.

Chet
 
I see three lines. Are these lines pendulums? are these masses connected in any way? Sounds like the problem revolves around a contraption, we just don't know what it is.
 
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