A uniform disc and a hollow rigt circular cone have the same formula for their M.I. when rotating about their central axes. why is it so?
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A uniform disc and a hollow right circular cone have same formula for their moment of inertia. This is because when a hollow right circular cone is cut along its slanting side and the metal is stretched out, you will find that the surface of the cone will form a circle. ... Hence they both have the same formula for MI.
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