Structure OAB is built in at point O and supports two forces of magnitude F parallel to the y and z axes. If the magnitude of the moment about point O cannot exceed 1:0 kN∙m, determine the largest...

Structure OAB is built in at point O and supports two forces of magnitude F parallel to the y and z axes. If the magnitude of the moment about point O cannot exceed 1:0 kN∙m, determine the largest value F may have.