The four particles shown below are connected by rigid rods of negligible mass where y., 5.90 m. The origin is at the center of the rectangle. The system rotates in the xy %3D plane about the z axis with an angular speed of 6.60 rad/s. 3.00 kg 2.00 kg 2.00 kg( 4.00 kg 4.00 m| (a) Calculate the moment of inertia of the system about the z axis. kg m2 (b) Calculate the rotational kinetic energy of the system.