Solving Tension on Cable Problem - Get the Answer Here

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SUMMARY

The discussion focuses on solving a physics problem involving tension in a cable supporting a 125-N sign. The setup includes a lightweight pole making a 40-degree angle with a wall and a cable at a 50-degree angle, forming a right triangle. Participants emphasize the importance of drawing a diagram, labeling known values, and applying the equations of equilibrium to find the tension in the cable. The recommended steps include summing forces in both the x and y directions and solving the resulting equations.

PREREQUISITES
  • Understanding of basic physics concepts, specifically forces and tension.
  • Familiarity with trigonometry, particularly right triangles and angle relationships.
  • Knowledge of equilibrium equations in static systems.
  • Ability to draw and interpret free-body diagrams.
NEXT STEPS
  • Study the principles of static equilibrium in physics.
  • Learn how to apply trigonometric functions to resolve forces in two dimensions.
  • Explore examples of tension problems in physics textbooks or online resources.
  • Practice drawing and analyzing free-body diagrams for various static scenarios.
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the mechanics of tension in static systems.

fmorel90
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Hi
I have a homework problem I can't understand:
A 125-N sign is supported by a lightweight pole and cable as shown in the diagram. What is the tension in the cable?

the diagram resembles |>
the | is a wall, the top of > is the cable and the bottom is the pole, and the sign hangs from point at the right.
The pole makes a 40 degree with the wall, and the cable is 50 degrees, so where the pole and cable meet is a right angle.

can anyone give a hint on how to solve that?
 
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Writing down the equaions of equilibrium might help. Pardon me, must help.
 
Step 1: Draw a Picture, label everything you know. Make assumptions. cable is tension, pole is compression.

Step 2: Sum the forces in x and y
Step 3: Solve equations.
 

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