## Question:

Replace the loading system acting on the post by an equivalent resultant force and couple moment at point $O$.

Given:

${ F }_{ 1 }$ = $30$ $Ib\quad a$ = $1$ $ft\quad d$ = $3$

${ F }_{ 2 }$ = $40$ $Ib\quad b$ = $3$ $ft\quad e$ = $4$

${ F }_{ 3 }$ = $60$ $Ib\quad c$ = $2$ $ft$