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Q: Can the mass of an objects be considered as concentrated at its centre of mass for the purpose of calculating rotational inertia?
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Can the mass of an object be considered as constucted at its centrer of mass for purpose of computing its rotational inertia?

No. For the rotational inertia, the distribution of masses is relevant. Mass further from the axis of rotation contributes more to the rotational inertial than mass that is closer to it.


Which has more rotational inertia a bicycle wheel or a solid disk of the same mass and diameter?

The bike wheel. It wil have its mass concentrated out by the rim.


Physical quantity coressponding to inertia is rotational motion?

The physical quantity for rotations corresponding to inertia is the moment of inertia, or rotational inertia. It is represented by the integral of r^2dm.


The product of an object's rotational inertia and its rotational velocity is?

The object's angular momentum


What does rotational inertia depend on?

Mass and radius


What is the property of an object that resists changes in rotational motion?

rotational inertiaMass moment if inertia.


Which component of the body either inertia or gravity or mass or weight is considered to be concentrated at the centre of gravity?

Center of gravity = center of mass, for most practical purposes. Mainly, the center of mass is the place where you imagine the mass to be concentrated. However, as a result, you can also consider inertia and weight to be concentrated at the center of mass.


How can you calculate the inertia constant for ac generator?

Calculating system inertia by mutiplying the Inertia Time Costant [Sgn] of every single generator to calculate the inertia of the generator and sum all inertias to calculate the whole system inertia Calculating system inertia from the RoCoF (post fault calculation)


Is the rotational inertia of your leg greater when your leg is bending or straight?

Stright


What is the rotational analog of mass in linear motion?

That is called moment of inertia.


Why moment of inertia is called rotational inertia?

That's what it's all about: about rotation. The "inertia" part is because it is comparable to the linear inertia: that's what makes it difficult to change an object's rotation.


What is rotational inertia?

Rotational inertia is sometimes called spin. It involves the movement of a mass around an axis. This moving mass will have some measure of kinetic energy that is due to the fact that it is spinning. The variables are the shape and the mass of the object, the way the mass is distributed within the object, the speed of its rotation, and the location of the axis of spin through the object. The moment of inertia might also be called angular mass, mass moment of inertia, rotational inertia, or polar moment of inertia of mass. Use the link below for more information.