$10)$ Find the maximum weight $\backslash ($ W $\backslash )$ that can be applied at the system knowing that the rope DG cannot sustain more than $3\mathrm{.}5$ kN and the member AE cannot sustain more than $7\mathrm{.}0$ kN $.$ Consider $\backslash (\backslash$mathrm$\{$AB$\}=0\mathrm{.}5\backslash$mathrm$\{$~m$\},\backslash$mathrm$\{$CD$\}=2\mathrm{.}5\backslash$mathrm$\{$~m$\}\backslash ),$ and the vertical distance between B and C is $3\mathrm{.}5$ m $.$