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Physics - Circular Motion Question with Solution | TestHub

PhysicsCircular MotionMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A flywheel rotates about a fixed axis and slows down from $300 rpm$ to $100 rpm$ in $2 \min$ . Then its angular retardation in $r a d \min^{- 2}$ is

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Answer:

Solution:

Because of uniform angular acceleration. we can use the equation of motion in rotation.
$α = \frac{ω_{2} - ω_{1}}{t} = \frac{2 π (100 - 300)}{2} = - 200 π r a d \min^{- 2}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Circular MotionSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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