The moment of inertia of more complex body is then defined as the sum of the moments of inertia of all the individual elements, \(I=\sum_0^k\]Ī radian is a ratio, a fraction of a circle, and therefore dimensionless. The moment of inertia of a point mass is often stated, without any justification, as being the mass of the particle \(m\) multiplied by the square of its distance \(k\) from the axis of rotation, or \(mk^2\). Torque can be described as a twisting force that causes rotation. It is the rotational equivalent of inertia or mass in systems involving linear acceleration. The ‘moment of inertia’ of a rotating body is the body's resistance to angular acceleration. Moment of Inertia Copyright © David Boettcher 2005 - 2023 all rights reserved.
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