Mathematics · Rotational Mechanics
Three identical solid spheres, each of mass m and diameter d, are fixed together such that the line segments connecting their centers form an equilateral triangle of side length d. What is the ratio I0IA, where I0 is the moment of inertia of the system about an axis passing through the centroid and IA is the moment of inertia about the center of one of the spheres, both axes being perpendicular to the plane of the triangle?
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