Physics - Circular Motion Question with Solution | TestHub

PhysicsCircular MotionMiscellaneousMedium2 minPYQ_2020

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A wheel is rotating at $900 r$ .p.m. about its axis. When power is cut offit comes to rest in 1 minute. The angular retardation in $rad / s^{2}$ is

Answer:

Solution:

Angular retardation, $α = \frac{ω _{2} - ω _{1}}{t} = \frac{2 π ( n _{2} - n _{1} )}{t} = \frac{2 π ( 0 - 900/60 )}{60} = \frac{π}{2} rad / s^{2}$

Stream:BITSATSubject:PhysicsTopic:Circular MotionSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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