Questions

A wheel comprises a ring of radius *R *and mass *M* and three spokes each of mass *m*. The moment of inertia of the wheel about its axis is

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a

M+m4R2

b

(M+m)R2

c

(M+3m)R2

d

M+m2R2

detailed solution

Correct option is B

The moment of inertia, I=Iring +3Ispoke =MR2+3mR23=(M+m)R2

Similar Questions

A rectangular loop has mass M and sides a and b. An axis ${\mathrm{OO}}^{\text{'}}$ passes tlrrough the centre C of the loop and is parallel to side a (lie in the plane of the loop). Then the radius of gyration of the loop, for the axis ${\mathrm{OO}}^{\text{'}}$ is

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