Answers

2014-10-02T20:01:02+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Basically moment of inertia determines how much torque is needed to achieve a certain angular acceleration. It is analogous to mass in case of linear motion. 
An object has a certain mass, but it can have different moments of inertia depending on the axis of rotation.
0
2014-10-04T02:41:26+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Moment of inertia of an object is defined with respect to an axis.

Suppose we imagine the object to consist of many small elements of mass δm with the center of mass at a distance r from the axis.

Moment of inertia is the sum aggregate of products =   Σ δm * r² 

In constructing bridges, for example, the shape or structure having maximum moment of inertia / volume is chosen for stability reasons.  For shapes in a constantly moving components (like a wheel), we choose shape with least moment of inertia.


0