Three forces act at points A$,$ B$,$ and C as shown in Figure $2.$ a$)$ If F $=(60$k$)$ kN$,$ find the couple moment $($Mc$)$ due to the couple F $($at A$)$ and $-$F $($at B$).$ Express answer in CVN$.$ b$)$ If R $=((-2)$i $+(-6)$j$)$kN and considering all three forces, find the equivalent force couple system acting at point O$.$ c$)$ Find the component$/$projection of $($Mc$)($moment due to the couple found in part a$)$ alone the CA axis. Report all answers in kN and kN$*$m