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A system of point particles is shown in the following figure. Each particle has
mass 0.3 kg and they all lie in the same plane.
a. What is the moment of inertia of the system about the given axis (imagine
the axis is out of the page)?
b. If the system rotates at 5 rev/s, what is its rotational kinetic energy?
40 cm
axis
20 cm
60 cm

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