ya, but is distribution of mass around axis of rotation same for both disc and solid cylinder?
Moment of Inertia of:
Ring = mr2 = Hollow Cylinder
Disc = mr2/2 =Solid Cylinder
Just elongate the ring in the direction of the axis of rotation and you'll get a hollow cylinder.
Just elongate the disc in the direction of the axis of rotation and you'll get a solid cylinder.
Why doesn't MoI of a cylinder depend on it's length?
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4 Answers
Abhishek Priyam
·2009-02-03 00:07:04
:P
because it jsut depend on distribution of mass around axis...
and U can say it depends on length or say doesn't depend on length... depends on waht is given mass or density...
Anirudh Narayanan
·2009-02-03 00:08:30
Celestine preetham
·2009-02-03 00:38:25
it does depend indirectly as ull observe that either mass inc or density dec