Two uniform circular rough disc of moment of inertia `I_(1)` and `(I_(1))/(2)` are rotating with angular velocity `omega_(1)` and `(omega_(1))/(2)` respectively in same direction. Now one disc is placed the other disc co-axially. The change in kinetic energy of the system is :A. `-(1)/(24)I_(1)omega_(1^(2))`B. `(1)/(24)I_(1)omega_(1^(2))`C. `(1)/(12)I_(1)omega_(1^(2))`D. `-(1)/(12)I_(1)omega_(1^(2))`

Two uniform circular rough disc of moment of inertia `I_(1)` and `(I_(

1.	Two uniform circular rough disc of moment of inertia `I_(1)` and `(I_(1))/(2)` are rotating with angular velocity `omega_(1)` and `(omega_(1))/(2)` respectively in same direction. Now one disc is placed the other disc co-axially. The change in kinetic energy of the system is :A. `-(1)/(24)I_(1)omega_(1^(2))`B. `(1)/(24)I_(1)omega_(1^(2))`C. `(1)/(12)I_(1)omega_(1^(2))`D. `-(1)/(12)I_(1)omega_(1^(2))`
Answer» Correct Answer - A

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