Q$2.$ Two forces act on the hook. Determine the magnitude of the resultant force.

Q$12.$ Determine the maximum mass of the lamp that the cord system can support so that no single cord develops a tension exceeding $400$ N $.$

Q$4.$ If the resultant force is required to act along the positive $\backslash ($ u $\backslash )$ axis and have a magnitude of $5$ kN $,$ determine the magnitude of $\backslash (\backslash$boldsymbol$\{$F$\}\_\{$B$\}\backslash )$ and its direction $\backslash (\backslash$theta $\backslash ).\backslash ($ y $\backslash )$

Q$16.$ Express the force $\backslash (\backslash$boldsymbol$\{$F$\}\backslash )$ in Cartesian vector form if its acts at the midpoint of $\backslash ($ B $\backslash )$ of the rod.