Physics · Rotational Motion
Four identical uniform solid spheres, each of mass M and radius R, are placed touching each other in a plane. Let IA, IB, IC, and ID represent the moments of inertia of these spheres about a fixed axis perpendicular to the plane passing through a reference point. If spheres A and D are located at a greater distance from the axis than spheres B and C, then:
- 1IA > IB > IC > ID
- 2ID > IC > IB > IA
- 3IA = ID > IB = IC✓
- 4IA = ID < IB = IC
Correct answer
IA = ID > IB = IC
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