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A disc of mass 8 kg and radius 0.5 m is turned about one of its diameters. What is its moment of inertia?
A1.0 kg m^2
B0.25 kg m^2
C0.5 kg m^2
D2.0 kg m^2
Answer & Solution
Correct answer: C. 0.5 kg m^2
About a diameter a disc has I = MR^2/4 = 8 x 0.25 / 4 = 0.5 kg m^2.
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