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Homework Help
Introductory Physics Homework Help
Tension in cable and reaction force
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[QUOTE="member 392791, post: 4544377"] [h2]Homework Statement [/h2] [h2]Homework Equations[/h2] [h2]The Attempt at a Solution[/h2] For this problem, what I am confused about is the fact that the Z direction parts of the tension will tend to rotate in a direction different from the Y components of the tension and the 850 lb vertical force. I am not sure how to reconcile the moments involving the Z-component into my moment equation around point A, which I know should be zero. The x component is along the line of point A, so there moments must be zero. I remember solving 2-D moments and the x components and y components will cause rotation in the same direction, but with 3-D moments it appears the z component will rotate around a different direction than the y component will, so it seems unlikely that they can be added together like the x and y components can be in 2-D torques. I know the page is cut off, but I don't get the right value when I do it this way. I know the part about the forces is correct, there is something that I am missing though with respect to taking a moment around point A, which I want to do in order to get rid of the reaction forces at A. [/QUOTE]
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Introductory Physics Homework Help
Tension in cable and reaction force
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