What is the use of moment of inertia?

Answer 1

moment of inertia is the rotational equivalent of mass. it is given by I= Mk2

moment of inertia in rotational motion play the same role as mass in linear motion, that is in linear motion f = ma while in rotation, torque= I*Angular acceleration where I is the moment of inertia

Answer 2

The moment of inertia is a tensor relating the angular velocity to the energy in angular motion and the angular momentum of a rigid body, and the angular acceleration to the torque.

Roughly speaking, it is to angular motion what mass is to linear motion. The formula can be found at http://en.wikipedia.org/wiki/Moment_of_inertia .

Answer 3

There are two types of moments of inertia - one is mass moment of inertia and the other geometrical or area moment of inertia. The geometrical moment of inertia is cross sectional property of an area that is used to compute stress and deflection in structures. It is the the integral of square of the distance to the centroid axis over the area cross section.

Answer 4

it is analogous to mass in translational motion.like mass measures intertia in translational motion same m.o.i measures interia in rotational motion ..body having high m.o.i offer greater resistance in rotation. M.O.I. =M*R2 M=mass of body R=distance of body from axis of rotation..

Answer 5

Moment of inertia is a measure of an object's resistance to changes in its rotational motion. It plays a crucial role in determining how objects respond to torque and angular acceleration. It is commonly utilized in engineering and physics to analyze the dynamics of rotating systems and to design structures with desired rotational characteristics.

Answer 6

The moment of inertia is the torque required to start an angle of acceleration along a rotating axis. This property is useful in classical mechanics.

Answer 7

inertia is that property of a mass which resist change in its state of rest or motion.

Answer 8

one is momentum the other is weight