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Physics - Rotation Question with Solution | TestHub

PhysicsRotationAngular momentumMedium2 minPYQ_2018

PhysicsMediumsingle choice

A disc has mass $M$ and radius $R$ . How much tangential force should be applied to the rim of the disc so as to rotate the disc with angular velocity $ω$ in time $t$ ?

Options:

Answer:

Solution:

$τ = I α$
$F \times R = \frac{M R^{2}}{2} \times \frac{ω}{t}$
$F = \frac{M R}{2} \times \frac{ω}{t}$

Stream:MHT_CETSubject:PhysicsTopic:RotationSubtopic:Angular momentum

⏱ 2mℹ️ Source: PYQ_2018

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