Balancing of masses rotating in different planes (without angle) / Balancing of masses by graphical

#theoryofmachine #balancingofrotatingmasses #forceandcouplepolygon #dynamicsofmachinery #education #excellentideasineducation #mechanicalengineering #annauniversity #exam Balancing of masses rotating in different planes (without angle) / Balancing of masses by graphical method / Theory of Machines A,B,C,D are the four masses carried by a rotating shaft at radii 100 mm, 150 mm, 150 mm and 200 mm respectively. The planes in which the masses rotate are spaced at 500 mm apart and the magnitude of the masses B,C and D are 9 kg, 5 kg and 4 kg respectively. Find the required mass A and the relative angular settings of the four masses so that the shaft shall be in complete balance.