ques on rotational motion

Asked by namaina2005 | 19th Dec, 2009, 08:19: PM

Expert Answer:

HI dear,

Moment of inertia can be used to describe the amount of angular momentum a rigid body has through this relation:

L = I/ omega

For the case where angular momentum is parallel to angular velocity , the momentum of inertia is scalar.

If an object is rotated about an arbitary axis, moment of inertia becomes tensor ..

Moment of any quanity (vector) is considered when there is change in direction.

The product of mass and velocity is called momentum.

Any object in rotational motion where, the momentum of the object is changing, as the direction in the rotational motion is changing,the moment of this momentum is called angular momentum.

Hope this helps.



Answered by  | 19th Dec, 2009, 09:47: PM

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