Mastering a Tough Physics Problem to Success and Gratitude

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SUMMARY

The discussion centers on resolving forces in a physics problem involving tensions and angles. The equation presented, (((Tension in CD)Cos45)Cos[alpha]) + BCos[theta] = A, is used to achieve equilibrium in the x-plane. Participants express concerns about the direction of forces and the need for clarity on the actual question being addressed. The conversation highlights the importance of understanding vector components in analyzing physical systems.

PREREQUISITES
  • Understanding of vector components in physics
  • Familiarity with trigonometric functions and their applications
  • Knowledge of equilibrium conditions in mechanics
  • Basic grasp of tension in cables and forces acting on structures
NEXT STEPS
  • Study the principles of vector resolution in physics
  • Learn about equilibrium in two-dimensional force systems
  • Explore the application of trigonometric identities in force analysis
  • Investigate real-world examples of tension in cables and their effects on structures
USEFUL FOR

Students of physics, engineers, and anyone involved in mechanics or structural analysis will benefit from this discussion, particularly those tackling complex force resolution problems.

hmfaysal
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Nice work, thanks
 
Last edited:
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hmfaysal said:
Fx= Asin135+ Bsin75

I'm not sure what this lot is. ASin135 would invert the force and put it in the other direction.

Based on the image, the tension in CD is added to tension B to counteract force A.

From what I see (probably the long way around):

(((Tension in CD)Cos45)Cos[alpha]) + BCos[theta] = A

That would resolve the forces and give you equilibrium in the x plane, but I have doubts as per statement below.

However, if CD is applying a tension to the pole and forces B and A are directly opposing in the x plane, what is counteracting the y-axis force exerted on the pole by the cable? Perhaps I'm overthinking it.

Please can you post the actual question, I feel something is missing.
 

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