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Physics - Circular Motion Question with Solution | TestHub

PhysicsCircular MotionMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A flywheel at rest is to reach an angular velocity of $24 rad s^{- 1}$ in $8 s$ with constant angular acceleration. The total angle turned through during this interval is

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Answer:

Solution:

$ω_{0} = 0, ω = 24 rad s^{- 1}, t = 8 s$

$∴ α = \frac{ω - ω_{0}}{t} = \frac{24}{8} = 3 {rad s}^{- 2}$

$θ = ω_{0} t + \frac{1}{2} α t^{2}$

$= 0 + \frac{1}{2} \times 3 \times {(8)}^{2}$

$= \frac{3 \times 64}{2} = 96 rad .$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Circular MotionSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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