How can I apply statics principles to solve a problem with unknown forces?

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SUMMARY

The discussion focuses on applying static principles to solve a problem involving unknown forces in a system. The user initially assumed a 90-degree angle at point B, which was identified as incorrect. The correct approach involves calculating the angle at point B using trigonometric functions based on the given dimensions. Once the angle is established, the user can derive the x and y components of the forces using relevant static equilibrium equations.

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  • Understanding of static equilibrium principles
  • Knowledge of trigonometric functions and their applications
  • Familiarity with vector components in physics
  • Ability to apply relevant equations for force analysis
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  • Study the concept of static equilibrium in detail
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This discussion is beneficial for students studying physics, particularly those focusing on statics, as well as educators seeking to enhance their teaching methods in force analysis and equilibrium concepts.

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scotthands said:
i assumed that there is a 90 degree angle at point B but I'm not sure if that's correct, I'm pretty stumped with this question...i just need a few pointers.
The tension in the cable acts in a direction along its length. You can calculate the angle that it makes at B from the given dimensions using trig. It is not 90 degrees. Once you determine the angle, get the x and y components from your relevant equations, and watch the direction, left or right, up or down.
 
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