33: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...
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
33
11ya, but is distribution of mass around axis of rotation same for both disc and solid cylinder?
9it does depend indirectly as ull observe that either mass inc or density dec