Question $2(2\mathrm{.}5$ points$)$

Given

A simple truss as shown in the diagram is subjected to a horizontal force, $\backslash ($ P $\backslash )$ at joint $\backslash ($ C $\backslash ).$ The normal stress in each of the $28\mathrm{.}5$ mm diameter bars is not allowed to exceed $146\mathrm{.}0$ MPa.

Required

Determine the maximum force, $\backslash ($ P $\backslash ),$ that can be applied to joint $\backslash ($ C $\backslash )$ in kN to the nearest $100$th$,$ i$.$e$.,$ two $(2)$ decimal places.