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Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A spherical shell of radius $R$ is rolling down an incline of inclination $θ$ without slipping. Find the minimum value of the coefficient of friction.

Options:

Answer:

Solution:

$F_{f} r = I α$

$\Rightarrow μ m g \cos θ = \frac{2}{3} m a$

$\Rightarrow μ m g \cos θ = \frac{2}{3} m \frac{g \sin θ}{1 + \frac{2}{3}}$

$\Rightarrow μ = \frac{2}{5} \tan θ$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:RotationSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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