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Two rigid rods are rotated about a pivot
point in the configuration shown below. The
longer rod has a mass 2M and length 2L,
while the shorter rod has a mass M and length
L. What is the moment of inertia for the
system about the pivot point shown?
pivot
33
12
ML²
60
2.
2.
12 M12
17
3.
ML²
12
108
4.
ML2
12
45
5.
6.
12 ML²
29
12 ML²
12
7.
ML2
8.
ML2

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