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inertia Definition
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inertia
noun(in-er-tia)a property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force
inertia
noun(in-er-tia)an analogous property of other physical quantities (such as electricity)
inertia
noun(in-er-tia)indisposition to motion, exertion, or change : inertness
inertia
noun phrase(in-er-tia)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