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Physics - Rotation Question with Solution | TestHub

PhysicsRotationTorque / angular accelerationMedium2 minPYQ_2004

PhysicsMediumsingle choice

A wheel having moment of inertia $2 kg$ $m^{2}$ about its vertical axis, rotates at the rate of $60 rpm$ about the axis. The torque which can stop the wheel's rotation in one minute would be:NEET 2004

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Solution:

Given, $I = 2 kg - m^{2}$ , $ω_{0} = \frac{60}{60} \times 2 π rad / s$ $ω_{0}$ and $t = 60 s$ The torque required to stop the wheel's rotation is $τ τ = I \propto l (\frac{ω _{0} - ω}{t}) = \frac{2 \times 2 π \times 60}{60 \times 60} = \frac{π}{15} N - m$

Stream:NEETSubject:PhysicsTopic:RotationSubtopic:Torque / angular acceleration

⏱ 2mℹ️ Source: PYQ_2004

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