Multiple Choice
The moment of inertia, I, of an object is the second moment of its mass distribution relative to an axis of rotation, , where r is the perpendicular distance from the rotation axis and
is the density of the object at a distance r from the rotation axis. What is the moment of inertia for rotation about the y-axis of a shape described by the region bordered by
x = 0, and y = 0 revolved about the y-axis? Assume the density of the material is 1.0, so that mass and volume will be numerically equivalent. [Hint: Cylindrical shells are particularly conducive to moment-of-inertia calculations since r is everywhere the same for a given shell.]
A)
B)
C)
D)
Correct Answer:

Verified
Correct Answer:
Verified
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