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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 (normal to the disc and passing through the centre), and rotating with angular speed `omega_1` and `omega_2` are brought into contact face to face with their axes of rotation coincident. What is the loss in kinetic energy of the system in the process?

A

`I_(1)I_(2)(omega_1 - omega_2)^(2)/2(I_1 + I_2)`

B

`I_(1)I_(2)(omega_1 - omega_2)^(2)/(I_1 + I_2)`

C

`I_(1)I_(2)(omega_1 + omega_2)^(2)/(I_1 - I_2)`

D

`I_(1)I_(2)(omega_1 + omega_2)^(2)/2(I_1 - I_2)`

Text Solution

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The correct Answer is:
A
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