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in Laws of motion by (48.4k points)

Suppose that you want to apply a 1000-N force F at point A in a direction such that the resulting tensions in cables AB, AC, and AD are equal. Determine the components of F.

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by (52.4k points)
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Best answer

We first write the position vectors

Now we can use these vectors to define the force vectors

The force F can be written F =Fxi + Fy j + Fzk The equilibrium equations are then 

We also have the constraint equation 

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