Beam ABC is rigid and supports the distributed load

shown. Each of the three wooden posts is pin$-$

connected to the beam. Each post has a diameter of

$175$ mm $.$ Assume $E_{\text{w}\text{o}\text{o}\text{d}}=10\mathrm{.}0$GPa. The given

dimensions are accurate to the nearest $1$ mm $.$

Compute the axial force in each post and the angle

of rotation $($tilt$)$ of Beam ABC.