13. Rotational Inertia & Energy
Moment of Inertia of Systems
Multiple Choice
Multiple ChoiceYou build a wheel out of a thin circular hoop of mass 5 kg and radius 3 m, and two thin rods of mass 2 kg and 6 m in length, as shown below. Calculate the system's moment of inertia about a central axis, perpendicular to the hoop.
A
51kg•m2
B
57 kg•m2
C
81 kg•m2
D
189 kg•m2
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