A ring of mass m and a particle of same mass are fixed on a disc of same mass such that centre of mass of the system lies at centre of the disc. The system rotates such that centre of mass of the disc moves in a circle of radius R with a constant angular velocity ω . From this we conclude that
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Verified by ExpertsThe correct answer is:
D
An external force of 3m ω 2 R is required which can act anywhere on system.
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