Replace the three forces shown by an equivalent force-couple system at point A. If the forces are replaced by a single resultant force, determine the distance d below point A to its line of action. 180 N 700 mm A 700 mm 110 N 700 mm 235 N Answers: Force-couple system at A. The force is positive if to the right, and the couple is positive if counterclockwise. 305 N M - i N.m Single resultant force. d mm