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The four particles shown below are connected by rigid rods of negligible mass where y, = 6.30 m. The origin is at the center of the rectangle. The system rotates in the xy plane about the z axis with an angular speed of 5.50 rad/s.
3.00 kg
2.00 kg
-x
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.

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