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Unformatted text preview: I = Σ I i Example 1. A 7.5 Kg thin rod and a small 5 Kg sphere are mounted on a 25 Kg disk as shown. The size of the sphere can be ignored and the disk is pivoted at its center. Find the moment of inertia of the assembly. ( Ans : 3.2 Kgm 2 ) O R = 0.4 m 2. Two small spheres A ( m A = 2.5 Kg) and B ( m B = 2 Kg) are attached to a 3 Kg slender rod as shown. The sizes of the spheres are negligible and the 2 m long rod is pivoted at point O . Find the moment of inertia of the assembly. ( Ans : 4 Kgm 2 ) O B A 0.6 m 0.5 m 1.5 m...
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