Problem $5[2]$

The below system of bars is in equilibrium and linked by pin connections at A and $B,$ which each sit halfway down the bar $($i$.$e$.\frac{d_2}{2}).$ The bars are of uniform composition and mass $15$ kg each. The specified distance $d1$ can be assumed to be the length between $A$&$B$ as well as the distance between $B$ and $C.$ Find the magnitude of the reaction force at point A Hint: break each piece out into its own FBD starting at the free end. When you do this, remember that forces at joints will be equal and opposite on connected members, as we mentinned in classl