For the four-bar linkage, assume that o2 = 50 rad/s ew and az = 1600 rad/s' cw. Write the appropriate vector equations and solve them using vector polygons determining: (a) Va, Ve, O, O4. (From velocity analysis: 03 = 12.04 rad/s ew, 04 - 32.72 rad/s ew) (b) an, ac, X3, C4. E E AB- 1.75 AD = 3.55 CD- 2.75 BC - 5.15 BE = 2.5 EC = 4.0 B 120 Position Diagram (scale: 1 in=1 cm) %3D Acceleration Polygon (scale: 1000 in/s =1 cm) Velocity Polygon (scale: 20 in/s = 1 cm) %3D