Physics - Rotation Question with Solution | TestHub

PhysicsRotation285Medium2 minQB

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

Answer:

Solution:

$a_{c m} = \frac{g s i n θ}{1 + I / m R ^{2}} = \frac{3 g s i n θ}{5}$

$f_{s} = \frac{2}{5} m g sin θ \leq μ m g cos θ$ , so $μ \geq \frac{2}{5} tan θ$

Answer (B)

Stream:JEESubject:PhysicsTopic:RotationSubtopic:285

⏱ 2mℹ️ Source: QB

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