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Four particles with masses 7 kg, 2 kg, 7 kg,
and 4 kg are connected by rigid rods of neg-
ligible mass as shown. Aassume the system.
rotates in the xy plane about the z axis (ori-
gin, O) with an angular speed of 6 rad/s.
7 kg
y A
4 kg
2 kg
6 rad/s
7 kg
Т
5 m
Find the moment of inertia of the system
about the z axis.
Answer in units of kg. m².
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