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A circular disc is rotating without fric...

A circular disc is rotating without friction about its natural axis with an angular velocity `omega`. Another circular disc of same material and thickness but half the raduis is gently placed over it coaxially. The angular velocity of composite disc will be

A

`(4omega)/3`

B

`(8 omega)/9`

C

`(7 omega)/8`

D

`(16 omega)/17`

Text Solution

Verified by Experts

The correct Answer is:
D
`I_(1)omega_(1)=(I_(1)+I_(2))omega_(2)`
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