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Physics - Rotation Question with Solution | TestHub

PhysicsRotationAngular momentumMedium2 minPYQ_2019

PhysicsMediumsingle choice

Given $v_{CM} = 2 m s^{- 1}$ , $m = 2 kg, R = 4 m$ Find the angular momentum of ring about its origin if it is in pure rolling.

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Answer:

Solution:

$L = I_{CM} \cdot ω + m v_{CM} R ω = \frac{v}{R} = \frac{2}{4} = 0.5 rad s^{- 1} L = m R^{2} \cdot ω + m v_{CM} \cdot R = 2 \times 16 \times 0.5 + 2 \times 2 \times 4 = 16 + 16 L = 32 kg m^{2} s^{- 1}$

Stream:AIIMSSubject:PhysicsTopic:RotationSubtopic:Angular momentum

⏱ 2mℹ️ Source: PYQ_2019

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