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Physics - Rotation Question with Solution | TestHub

PhysicsRotationTranslational + RotationalMedium2 minQB

PhysicsMediumsingle choice

A solid sphere of mass m and radius R is gently placed on a rough horizontal ground with an angular speed $ω_{0}$ and no linear velocity. Coefficient of friction is $μ$ .

The angular velocity at the end of the slipping is

Options:

Answer:

Solution:

$ω = ω_{0} - α t$

$ω = ω_{0} - \frac{5 μg}{2 R} \cdot \frac{2 R ω _{0}}{7 μg}$

$ω = ω_{0} - \frac{5}{7} ω_{0} = \frac{2}{7} ω_{0}$

Answer: B

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Translational + Rotational

⏱ 2mℹ️ Source: QB

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