Physics - Rotation Question with Solution | TestHub

PhysicsRotation283Medium2 minQB

PhysicsMediummultiple choice

A uniform ring ABCD of radius 2R rolls without slipping on a horizontal surface. At any instant, its position is as shown :-

Answer:

A, D

Solution:

The contact point D is the instantaneous centre of rotation, so $ω = \frac{V}{2 R}$ clockwise

Point speed = $ω \times$ distance from D: the upper section ABC moves faster than ADC and has greater kinetic energy; BC and CD differ

Answer (A, D)

Stream:JEESubject:PhysicsTopic:RotationSubtopic:283

⏱ 2mℹ️ Source: QB

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