Physics - Center of Mass Question with Solution | TestHub

PhysicsCenter of MassMiscellaneousMedium2 minQB

PhysicsMediumsingle choice

A ring of mass $m$ and a particle of same mass are fixed on a uniform disc of same mass such that the centre of mass of the system lies at the centre of the disc but centers of ring and disc do not coincide. The system rotates such that the centre of mass of the disc moves in a circular path of radius $R$ with a constant angular velocity $ω$ . From this, we conclude that

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Answer:

Solution:

According to the question, the COM of the system moves in a circle of radius $R$ .

$∴ F_{e x t} = M a_{CM} = 3 m \cdot ω^{2} R$

Stream:JEESubject:PhysicsTopic:Center of MassSubtopic:Miscellaneous

⏱ 2mℹ️ Source: QB

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