Extracted text: 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. 270 N 720 mm 720 mm 160 N 720 mm 285 N Answers: Force-couple system at A. The force is positive if to the right, and the couple is positive if counterclockwise. R= N N-m Single resultant force. d= i mm