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Two discs of moments of inertia I1 and I...

Two discs of moments of inertia `I_1` and `I_2` about their respective axes, rotating with angular frequencies, `omega_1` and `omega_2` respectively, are brought into contact face to face with their axes of rotation coincident. The angular frequency of the composite disc will be `A`.

A

`(I_(1) omega_(1)-I_(2)omega_(2))/(I_(1)-I_(2))`

B

`(I_(1)omega_(1)+I_(2)omega_(2))/(I_(1)+I_(2))`

C

`(I_(2)omega_(1)+I_(2)omega_(2))/(I_(1)+I_(2))`

D

`(I_(2)omega_(1)-I_(1)omega_(2))/(I_(1)-I_(2))`

Text Solution

Verified by Experts

The correct Answer is:
B
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