Seven identical circular planar disks, each of mass M and radius R are welded symmetrically as shown. The moment of inertia of the arrangement about the axis normal to the plane and passing through the point P is: |
[JEE Main Online 08-04-2018] |
A) \[\frac{\text{73}}{\text{2}}\text{M}{{\text{R}}^{\text{2}}}\]
B) \[\frac{\text{181}}{\text{2}}\text{M}{{\text{R}}^{\text{2}}}\]
C) \[\frac{\text{19}}{\text{2}}\text{M}{{\text{R}}^{\text{2}}}\]
D) \[\frac{\text{55}}{\text{2}}\text{M}{{\text{R}}^{\text{2}}}\]
Correct Answer: B
Solution :
[b] |
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