I am getting negative values in my calculation. I performed the cross product an

Question

I am getting negative values in my calculation. I performed the cross product and keep getting negative answers for tensions in AC and AB.

The structural system is designed to support a bunk of wood weighing F = 350 lb. The system consists of a ball-and-socket joint at O, a rigid bar AO, and two cables AB and AC that are connected to the bar at A Neglect the weight of the bar. Determine the forces acting in cables AB and AC for static equilibrium, and indicate if they are seing tensile or compressive forces.

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