Question

Explain the physical significance of mass moment of inertia

Answer 1

Answer:

Physical Significance of Moment of Inertia:

It is an inherent property of matter. It is due to the inertia, a body opposes any change in its state of rest or of uniform motion in a straight line. In the translational motion, the mass of a body is a measure of its inertia.

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Answer 2

Rotational inertia is important in almost all physics problems that involve mass in rotational motion. It is used to calculate angular momentum and allows us to explain (via conservation of angular momentum) how rotational motion changes when the distribution of mass changes.