The frame shown is supported by a hinge at $A$ and a roller at $E$.
Compute the horizontal and vertical components of the hinge forces at $B$ and $C$ as they act upon member $AC$.
$B_H = $ 4 kN to the right
$B_V = $ 12 kN upward
$C_H = $ 4 kN to the left
$C_V = $ 9.6 kN downward
