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Three identical thin rods, each of mass m and length l, are joined to form an equilateral triangular frame. The moment of inertia of the frame about an axis parallel to its one side and passing through the opposite vertex is
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Correct option is B
About OO’IAC=IBC=ml23sin2600=ml24MI of the rod AB about OO’IAB=ml322=3ml24I=IAC+IBC+IAB=5ml24Talk to our academic expert!
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The moment of inertia of a circular disc of radius 2 m and mass 2 kg, about an axis passing through its centre of mass is 2 kg – . Its moment of inertia about an axis parallel to this axis and passing through its edge (in Kg -) is
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