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Physics - Rotation Question with Solution | TestHub

PhysicsRotationTranslational + RotationalMedium2 minQB

PhysicsMediumsingle choice

A wheel is rolling straight on ground without slipping. If the centre of mass of the wheel has speed v, the instantaneous velocity of a point P on the rim, defined by angle $θ$ , relative to the ground will be -

Options:

Answer:

Solution:

Velocity of P = v (translation) + ωR = v (rotation, tangent to the rim)

The angle between the two velocities is θ

$v_{P} = v^{2} + v^{2} + 2 v^{2} cos θ$

$v_{P} = 2 v^{2} (1 + cos θ) = 2 v cos \frac{θ}{2}$

Answer: B

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Translational + Rotational

⏱ 2mℹ️ Source: QB

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