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Physics - Rotation Question with Solution | TestHub

PhysicsRotationAngular momentumMedium2 minPYQ_2003

PhysicsMediumsingle choice

A thin circular ring of Mass $M$ and radius $r$ is rotating about its axis with a constant angular velocity $ω$ . Four objects each of mass $m$ , are kept gently to the opposite ends of two perpendicular diameters of the ring. The angular velocity of the ring will be:NEET 2003

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Answer:

Solution:

According to law of conservation of angular momentum $M r^{2} ω = (M r^{2} + 4 m r^{2}) ω^{'} \Rightarrow ω^{'} = \frac{M ω}{M + 4 m}$

Stream:NEETSubject:PhysicsTopic:RotationSubtopic:Angular momentum

⏱ 2mℹ️ Source: PYQ_2003

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