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Physics - Rotation Question with Solution | TestHub

PhysicsRotationAngular momentumMedium2 minPYQ_2009

PhysicsMediumsingle choice

A particle of mass $m$ is rotating in a plane in circularpath of radius $r$ . Its angular momentum is $L$ . The centripetal force acting on the particle is

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Solution:

Centripetal force, $F = \frac{m v ^{2}}{r} = \frac{m}{r} \frac{L ^{2}}{m ^{2} r ^{2}} = \frac{L ^{2}}{m r ^{3}}$ $[$ As $L = m v r ∴ v = \frac{L}{m r}]$

Stream:MHT_CETSubject:PhysicsTopic:RotationSubtopic:Angular momentum

⏱ 2mℹ️ Source: PYQ_2009

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