Question

What physical characteristic does the moment of inertia of a rotating object most directly and accurately measure?

Answer 1

Step-by-step explanation:

Moment of inertia is defined as resistance offered by the rotating body to the acceleration or deceleration and it is calculated by the multiplying the mass of the object into square of the perpendicular distance from its axis of rotation.

Moments of inertia of the rotating object is a sum of moments of inertia of each particle in the body into the square of distance from its axis of rotation..

`I=mass* r^2`

r = perpendicular distance from the axis of the rotation

From the definition it evident that Moment of inertia is directly proportional to the mass of the object.

`I\propto mass`

An individual can easily determine the mass of the rotating object with help of moment of inertia and perpendicular distance from the axis of rotation.