Finding Forces in Static Equilibrium

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Homework Help Overview

The discussion revolves around a problem related to static equilibrium, specifically focusing on finding forces acting at a junction where cords meet. The original poster expresses uncertainty about the problem-solving process in this context.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants explore the information provided and question whether additional details are available. There is a suggestion to analyze the forces at the meeting point of the cords and consider the implications of equilibrium on net forces.

Discussion Status

The discussion is ongoing, with some participants offering hints about analyzing forces and breaking them into components. There is no explicit consensus on a method, but guidance has been provided regarding the analysis of forces in equilibrium.

Contextual Notes

The original poster has indicated that they have limited information regarding the problem, which may affect the depth of the discussion.

honestliar
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I have no basic idea about this lesson, how can you solve for this problem?


http://tinypic.com/m/5aizk3/3

thanks
 
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are you given any other information?
 
no, that's all
 
You have all the information needed. Hint: Analyze the forces acting at the point where the cords meet. What does equilibrium tell you about the net force in any direction?
 
From that you can see that the total force upwards has to be provided by the second chord. So you break the chord into horizontal components. by doing this you are turning it into a vector diagram(pic)

from this you can use triginometry to find the force being exerted up, which will be opposite the force down, which in turn is the weight.
 

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