Statics problem. Cable with distributed load

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Discussion Overview

The discussion revolves around a statics problem involving a cable subjected to a distributed load. Participants seek assistance in understanding the problem, identifying relevant equations, and formulating a solution approach. The context is primarily homework-related, focusing on the application of static equilibrium principles.

Discussion Character

  • Homework-related
  • Exploratory
  • Technical explanation

Main Points Raised

  • One participant expresses uncertainty about which equations to use, mentioning a specific equation related to tension in the cable.
  • Another participant suggests drawing a free body diagram to analyze the horizontal forces and potentially determine the angle of the rope.
  • A third participant notes that the forces at the ends of the cable are tangential and that equilibrium requires these forces to meet at a point, but highlights a lack of information regarding the cable's self-weight.
  • A later reply indicates that the original poster's professor had recently covered the derivation in class, implying that the problem may have been assigned prematurely.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the solution approach, and multiple perspectives on how to tackle the problem remain. There is no clear resolution to the uncertainties expressed regarding the application of static equilibrium principles.

Contextual Notes

Participants acknowledge missing information about the cable's self-weight, which may affect the analysis. The discussion also reflects varying levels of confidence in solving the problem.

ThewyBenner
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20161101_101911.jpg

Homework Statement


can someone please help and explain to me how to do this problem? all the data is in the picture above.

Homework Equations


i am not entirely sure which equations i should use. i know one possible equation is T=((T_o)^(2)+(wy)^(2))^(1/2)

The Attempt at a Solution


with the one equation that i know, i can say that point 1 is not the bottom of the parabola.
past that i need help
Any help would be appreciated
i have been stuck for about a day and a half and just don't know where to start.

Thank you so much
 
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I haven't tried to solve it all (not sure I can) but try drawing a free body diagram for the rope showing the horizontal forces. I think it's possible to work out the angle the rope makes at the bottom if that helps.
 
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You know the forces at the ends of the cable. You know those forces are tangential to the cable ends. You know the drag. That makes 3 forces. If they are in equilibrium they must all meet at one point. You don't have enough information about the cable self-weight to take account of that. Can you do it graphically with a triangle of forces?
 
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thanks both of you for the help. my proffessor just walked through the derivation today in class. . . I don't know why he assiNed the problem so early. . .
thanks again
 

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