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Four point masses, m¡ = 2 kg, m2 = 3 kg, m3
= 4 kg and m4
5 kg are on the x axis as
shown in the figure below.
mi
m2
m3
1.0
2.0
3.0
4.0
x (m)
Find the moment of inertia of the above system about an axis of rotation that is
perpendicular to the page and passes through x = 4 m.
Find the moment of inertia of the above system about an axis of rotation that is
perpendicular to the page and passes through x = 3 m.

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