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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

Two wheels A and B are mounted on the same axle. Moment of inertia of A is and it is rotating at 600 rpm when B is at rest. What is moment of inertia of B, if their combined speed is 400 rpm?

Answer: (C)

Solution

Angular momentum is conserved: I_B)I_B$=3\

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Question ID VK-040711