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Two uniform rods of mass ‘m’ and length ‘l’ form a cross, moment of inertia of cross about an axis parallel to CD passing through A is
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Correct option is A
moment of inertia of rod AB about an axis passing through A and parallel to CD ml23 and that for rod CD is ml24 so total moment of inertia is 7ml212Talk to our academic expert!
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A rectangular loop has mass M and sides a and b. An axis passes tlrrough the centre C of the loop and is parallel to side a (lie in the plane of the loop). Then the radius of gyration of the loop, for the axis is
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