Seven identical circular planar discs, each of mass M and radius R 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

Question:

17.Seven identical circular planar discs, each of mass M and radius R 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

Options :

a) (73/2)MR^2
b) (181/2)MR^2
c) (19/2)MR^2
d) (55/2)MR^2

Answer :

b) (181/2)MR^2

Answer Steps :

Step1 :-

Step2 :-

Step3 :-

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