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Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

Two discs $A$ and $B$ are in contact and rotating with angular velocity with angular velocities $ω_{1}$ and $ω_{2}$ respectively as shown. If there is no slipping between the discs, then

Options:

Answer:

Solution:

For no slipping the linear velocity at point of contact for both the discs must be same

$ω_{1} R_{1} = ω_{2} R_{2}$ or $\frac{ω_{1}}{ω_{2}} = \frac{R_{2}}{R_{1}}$

But $R_{1} > R_{2}$

$∴ ω_{1} < ω_{2}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:RotationSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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