Unlocking 3D Equilibrium and Moments

AI Thread Summary
The discussion focuses on solving a 3D equilibrium problem involving forces and moments at a fixed end with six unknowns. The user is attempting to resolve a force that is parallel to the XY plane, leading to confusion about its maximum magnitude of 970N. They are struggling with breaking down this force into its i and j components and calculating the moment about the origin using the cross product. The user seeks hints to clarify their approach and resolve the issue. The challenge lies in correctly applying the principles of equilibrium and moments in three dimensions.
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3D Equilibrium(and Moments)

Homework Statement



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Homework Equations



Sum of the forces in x=0
Sum of the forces in y=0
Sum of the forces in z=0
Sum of Moments (at a point) =0 (of x,y,z)

The Attempt at a Solution



Since it is a fixed end there is 6 unknowns right at the origin (Ax, Ay, Az, Max, May, Maz). It also states that the the force is parallel to the XY plane so I take it there is no k component of the force. The only problem I am having is with the force it says "its magnitude will not exceed 970N". I tried breaking up the 970N into i and j components using the coordinates given and calculating the moment about the origin using cross product, but I got the wrong answer. I know how to solve the problem, but the force is throwing me off.

Any hints would be nice, thanks!
 
Last edited:
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Anyone have any ideas? Sorry for the rush, but this question is killing me.
 
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