A rotational system having a four (4) masses m1=200 kg, m2=300 kg, m3=240 kg, and m4=260 kg, each mass situated at a radius r1=0.2 m, r2=0.15 m, r3=0.25 m, and r4=0.3 m and angle between successive masses are 01=0, 02=45, 03-75, 04-135. If the radius of rotation is 0.2 m, Determine, 3.1. The sum of the horizontal couple 3.2. The sum of the vertical couple 3.3. The resultant coupling 3.4. The magnitude of the balance mass 3.5. The angle of the balance mass [3] [3] [3] [3] [3]