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A disc of moment of inertia 2 kg -m^(23)...

A disc of moment of inertia `2 kg -m^(23)` revolving with `8 rad//s` is placed on anothere disc of moment of inertia `4 kg-m^(2)` revolving `4 rad//s`.What is the angular frequency of composite disc?

A

`4rad//s`

B

`3/16rad//s`

C

`16/3rad//s`

D

`16/5rad//s`

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The correct Answer is:
C
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