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Three particles of masses 1gm, 2gm & 3gm...

Three particles of masses `1gm, 2gm & 3gm` are at `1cm, 2cm & 3cm` from the axis of rotation respectively then the moment of inertia of the system & radius of gyration of the system respectively are …. `gm cm^2` and ….. `cm`

A

`63,2.449`

B

`60,4.5`

C

`36,4.449`

D

`36,2.449`

Text Solution

Verified by Experts

The correct Answer is:
D
`I=Sigmamr^(2)=1(1)^(2)+2(2)^(2)+3(3)^(2)`
and `K=sqrt(I/(Sigmam))`
`36,2.449`
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