The rotational kinetic energy of two bod...

The rotational kinetic energy of two bodies of moment of inertia `9 kg m^(2)` and `1kg m^(2)` are same . The ratio of their angular momenta is

A

`3:1`

B

`3:5`

C

`3:2`

D

`1:3`

Text Solution

Verified by Experts

The correct Answer is:

A

` E = (L^(2))/(2I) rArr L prop sqrt(I) rArr (L_(1))/(L_(2)) = sqrt(9/1) = 3 `

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