First slide

Moment of intertia

Question

Figure represents the moment of inertia of the solid sphere about an axis parallel to the diameter of the
solid sphere and at a distance x from it. Which one of the following represents the variations of I with x?

Moderate

A
B
C
D

Solution

Moment of inertia, $I = I_{CM} + m x^{2}$
i.e. I-x graph is a parabola not passing through origin

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