Calculate Tension of Two Wires: Physics/Precalc

  • Context: High School 
  • Thread starter Thread starter Planetx
  • Start date Start date
  • Tags Tags
    Calculations Tension
Click For Summary

Discussion Overview

The discussion revolves around calculating the tensions in two wires supporting a weight, specifically focusing on the vector magnitudes involved. The context is a high school physics/precalculus problem involving angles and forces.

Discussion Character

  • Homework-related, Mathematical reasoning, Conceptual clarification

Main Points Raised

  • One participant describes the problem setup, including angles A and B and the weight being supported, indicating difficulty in solving the equations.
  • Another participant proposes a relationship between the variables, suggesting an equation for x in terms of y, but expresses uncertainty about the direction of their reasoning.
  • A similar equation is presented by another participant, with a slight variation, who also feels they are not approaching the problem correctly.
  • One participant mentions a common belief that the Pythagorean theorem is straightforward, but questions whether tension behaves differently from magnitude in this context.

Areas of Agreement / Disagreement

Participants express uncertainty and confusion regarding their approaches to the problem, indicating that there is no consensus on how to proceed or what the correct relationships are.

Contextual Notes

Participants note limitations in their understanding of angle theorems and vector analysis, which may affect their ability to solve the problem accurately.

Planetx
Messages
6
Reaction score
0
I am tasked to find the tensions of two wires by calculating the "magnitude of the vector" in a high school physics/precalc class. I have tried working out the equation in several ways but they all end up in an unsolvable format. So, in reference to the picture, A = 35 degrees, B= 30 degrees and sides a and b symbolize the magnitude or tension on two vectors when holding a 1200 lbs weight from a level position. I am given no other information.
1461943737818.jpg
 
Physics news on Phys.org
I have found that x = (-ycos35/cos150) no? And I tried substituting it into a few equations I worked out. I feel I am in the WAY wrong direction here and common sense is failing me.
 
Planetx said:
I have found that x = (-ycos35/cos180) no? And I tried substituting it into a few equations I worked out. I feel I am in the WAY wrong direction here and common sense is failing me.
I realize this is a simple problem but my application of angle theorem and vector analysis is limited so far.
 
Some people told me pythagorean theorem is that simple but i figured tension would be different from magnitude
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
6K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
5K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 12 ·
Replies
12
Views
3K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 3 ·
Replies
3
Views
3K
Replies
4
Views
3K