How Is Tension Distributed in a Scaffold Supported by Wires with Uneven Loads?

Click For Summary
SUMMARY

The discussion focuses on calculating the tension in wires supporting a scaffold with uneven loads. A 200-N scaffold is 18m long, with a 650-N box positioned 3.0m from the left end. The correct approach involves analyzing torques about the left end, ensuring that the sum of torques equals zero. The final tensions calculated should align with the provided answer choices, which include left wire tensions of 640N, 195N, 295N, and 520N, and right wire tensions of 210N, 975N, 1000N, and 130N.

PREREQUISITES
  • Understanding of static equilibrium principles
  • Knowledge of torque calculations
  • Familiarity with tension forces in cables
  • Basic algebra for solving equations
NEXT STEPS
  • Study the principles of static equilibrium in physics
  • Learn how to calculate torque and its effects on structures
  • Explore tension force analysis in cable systems
  • Practice solving similar problems involving uneven loads and multiple supports
USEFUL FOR

This discussion is beneficial for physics students, engineers, and anyone involved in structural analysis or mechanics, particularly those working with load-bearing systems and tension calculations.

cheryl morgan
Messages
1
Reaction score
0
A 200-N scaffold is held up by a wire at each end. The scaffold is 18m long. A 650-N box sits 3.0m from the left end. What is the temsion in each wire?

I have worked this problem several times but none of my answers are close to the choices I have on my paper. I tried it like this FT= -200(9) + 650(3) this is for the right side and FT=200(9)+ 15(650) for the left but it is not correct.

The choices for the answers are A)left wire=640N;right wire+210N B)left wire+195N; right wire=975N C) Left wire=295N;right wire=1000N D)left wire=520N; right wore=130N.

Mine do not come close to any of the answers. What have I done wrong. I greatly appreciate your help on this problem. Thank you
 
Physics news on Phys.org
cheryl morgan said:
I tried it like this FT= -200(9) + 650(3) this is for the right side
Redo this. What are the torques about the left end? They must add to what? (Be sure to call clockwise torques negative and counterclockwise torques positive.) That should allow you to solve for the tension on the right end.
 

Similar threads

How Is the Tension in the Right Support Wire Calculated?
  • · Replies 2 ·
Replies
2
Views
2K