Why is radius important in tension calculations but not in force components?

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Homework Help Overview

The discussion revolves around a physics problem involving a uniform boom supported by a cable, with a weight hanging from its top. The original poster is trying to understand the role of radius in tension calculations compared to its absence in force component calculations.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster questions the significance of radius in tension calculations while noting its lack of influence in calculating force components. Some participants request visual aids to better understand the problem context.

Discussion Status

The discussion is ongoing, with participants seeking clarification and additional information. There is an emphasis on visual representation to aid understanding, but no consensus or resolution has been reached yet.

Contextual Notes

Participants have noted issues with accessing the provided image link, which may hinder the discussion's progress.

Godawgs94
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A 1130 N uniform boom is supported by a cable perpendicular to the boom, as seen in the figure below.
The boom is hinged at the bottom, and an m = 1870 N weight hangs from its top. Assume the angles to be
mimetex.gif
= 69.5o and
mimetex.gif
= 90.0o -
mimetex.gif
. Find the tension in the supporting cable
Find the x-components of the reaction force exerted on the boom by the hinge (choose to the right as positive).
Find the y-components of the reaction force exerted on the boom by the hinge (choose upwards as positive).

I don't understand why radius is taken into account when calculating tension, but doesn't play a role in calculating the components of force.
 
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It would help to see the picture.
 
https://spock.physast.uga.edu/res/brookscole/serway/College_Physics_7ed/Chap08/graphics/serw0822.gifhttps://spock.physast.uga.edu/res/brookscole/serway/College_Physics_7ed/Chap08/graphics/serw0822.gif
sorry, here it is
 
Last edited:
axmls said:
It would help to see the picture.

picture is here

https://spock.physast.uga.edu/res/brookscole/serway/College_Physics_7ed/Chap08/graphics/serw0822.gif
 
Godawgs94 said:
picture is here

https://spock.physast.uga.edu/res/brookscole/serway/College_Physics_7ed/Chap08/graphics/serw0822.gif

Sorry, this link asks for your login information.

Please try to re-post your images.
 

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