moment of inertia

noun phrase

Definition of moment of inertia

: a measure of the resistance of a body to angular acceleration about a given axis that is equal to the sum of the products of each element of mass in the body and the square of the element's distance from the axis

First Known Use of moment of inertia

1830, in the meaning defined above

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The first known use of moment of inertia was in 1830

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