$2/68$ The force $F$ is applied at the end of armACD, which is mounted to a vertical post. Replace this single force $F$ by an equivalent force$-$couple system at $B.$ Next, redistribute this force and couple by replacing it with two forces acting in the same direction as $F,$ one at $C$ and the other at $D,$ and determine the forces supported by the two hex$-$bolts. Use values of $F=425N,=30,b=1\mathrm{.}9m,d=0\mathrm{.}2m,h=0\mathrm{.}8m,$

$-,$ and $l=2\mathrm{.}75m$

Problem $2768$