Q.
A wheel comprises of a ring of radius R and M and three spokes of mass m each moment of inertia of the wheel about its axis is:
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a
M+m4R2
b
M+mR2
c
M+3mR2
d
M+3m2R2
answer is B.
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Detailed Solution
Moment of inertia of the ring is MR2 and that of each spoke is mR23 .Total moment of inertia MR2+mR23×3=M+mR2
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