Problem $3$: The pole for a power line is subjected to the two cable forces of $60$ lb $,$ each force lying in the plane parallel to the $x-y$ plane. If the tension in the guy wire AB is $80$ lb $,$ determine the $x,y,$ and z components of reaction at the base of the pole O $.$

partial answer Ay$=84\mathrm{.}9$ lb

My$=0$

Mx$=0$