Worksheet, 4.7-4.8 -4-112. The belt passing over the pulley is subjected to two forces F, and Fy. each having a magnitude of 40 N. F, acts in the -k direction, Replace these forces by an equivalent force and couple moment al point A. Express the result in Cartesian vector form. Take 8 = 45. r = 80) mm 30 0 mm Ans. Replace the three forces acting on the shaft by a single resultant force. Specify where the force acts, memured from end A. 260 m