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Physics - Rotation Question with Solution | TestHub

PhysicsRotationAngular momentumEasy2 minPYQ_2020

PhysicsEasysingle choice

A thin circular ring of mass $M$ and radius $r$ is rotating about its axis with a constant angular velocity $ω$ . Two objects, each of mass $m$ , are attached gently to the opposite ends of the diameter of the ring. The wheel now rotates with an angular velocity

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Answer:

Solution:

$I_{1} ω_{1} = I_{2} ω_{2}$

$∴ ω_{2} = \frac{I_{1}}{I_{2}} ω = (\frac{M r^{2}}{M r^{2} + 2 m r^{2}}) ω = (\frac{M}{M + 2 m}) ω$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:RotationSubtopic:Angular momentum

⏱ 2mℹ️ Source: PYQ_2020

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