Physics - Rotation Question with Solution | TestHub

PhysicsRotationRotational KinematicsMedium2 minPYQ_2019
PhysicsMediumsingle choice

A rigid body is rotating with angular velocity'ω'about an axis of rotation. Let ‘v’ be the linear velocity of particle which is at perpendicular distance ‘r’ from the axis of rotation. Then the relation ‘v’ =rωimplies that

Options:

Answer:
A
Solution:

Using the given relation,
v=rω
If the perpendicular distance r from the axis of rotation is increased or decreased, then the value of linear velocity v accordingly increases or decreases. Thus, the value of angular velocityωdoes not depend on r.

Stream:MHT_CETSubject:PhysicsTopic:RotationSubtopic:Rotational Kinematics
⏱ 2mℹ️ Source: PYQ_2019

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