Find the resultant elbow flexor force $($Fm$)$ that is required to keep the forearm and hand in a horizontal

position $($E is $90$ CCW with respect to the downward vertical direction$).$ The resultant muscle force is

applied $7$ cm along the segment from the elbow joint $($rm$)$ and pulls at an angle of $25$ CW with respect to

the forearm segment $($upward and back direction$)($m$).$ The forearm and hand together weigh $25$ N

$($WFH$),$ and the center of mass for this system is located $14$ cm from the axis of the elbow joint $($rFH$).$