Seven identical circular planar discs, each of mass M and radius R are welded symmetrically as shown in the figure. The moment of inertia of the arrangement about an axis normal to the plane and passing through the point P is 181 2 55 MR² 19 MR2 (o), MR 2 2 (a) MR² (b) MR² (d) MR² 73 2
Seven identical circular planar discs, each of mass M and radius R are welded symmetrically as shown in the figure. The moment of inertia of the arrangement about an axis normal to the plane and passing through the point P is 181 2 55 MR² 19 MR2 (o), MR 2 2 (a) MR² (b) MR² (d) MR² 73 2
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Transcribed Image Text:Seven identical circular planar discs, each of mass M and
radius R are welded symmetrically as shown in the figure.
The moment of inertia of the arrangement about an axis
normal to the plane and passing through the point P is
(a)
181
2
MR² (b)
19
2
MR² (c)
P.
55
MR²
2
73
(d) MR²
2
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