The moment of inertia is not an intrinsic property of the body, but rather depends on the choice of the point around which the body rotates. ![]() This holds true for all regular polygons. earlier calculated the moment of inertia to be half as large That’s because the two moments of inertia are taken about different points. ![]() ![]() ![]() The result is valid for both a horizontal and a vertical axis through the centroid, and therefore is also valid for an axis with arbitrary direction that passes through the origin. The moment of inertia (MI) of a plane area about an axis normal to the plane is equal to the sum of the moments of inertia about any two mutually perpendicular axes lying in the plane and passing through the given axis. Chose a mass element 'dm' at a distance 'rho' from the center of the circle.
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