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What is the use of moment of inertia?

Updated: 8/11/2023
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9y ago

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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

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13y ago
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14y ago

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 .

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11y ago

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.

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11y ago

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..

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9y ago

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.

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12y ago

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

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11y ago

one is momentum the other is weight

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Q: What is the use of moment of inertia?
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We use y_y axes


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Inertia is affected by an outside force. So if you calculate the moment of inertia, you calculate the magnitude and possibly the direction of the outside force. You can use this to determine acceleration.


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mass moment of inertia is the property of the body to resist rotation about the given axis where as the area moment of inertia is the resistance to bending about the given axis


What is the unit for a polar moment of inertia?

Moment of inertia has unit kg m2


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define moment of inertia§ I is the moment of inertia of the mass about the center of rotation. The moment of inertia is the measure of resistance to torque applied on a spinning object (i.e. the higher the moment of inertia, the slower it will spin after being applied a given force).


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