Physics - Rotation Question with Solution | TestHub

PhysicsRotationCalculation of M.I.Easy2 minPYQ_2025

PhysicsEasysingle choice

A solid sphere and a hollow sphere of the same mass and of same radius are rolled on an inclined plane. Let the time taken to reach the bottom by the solid sphere and the hollow sphere be $t_{1}$ and $t_{2}$ , respectively, then

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Answer:

Solution:

$t = \frac{2 ℓ}{a _{cm}} a_{cm} = \frac{g sin θ}{1 + \frac{I _{cm}}{MR ^{2}}} a_{1} = a_{cm_{1}} = \frac{5 g sin θ}{7} \dots .. Solid a_{2} = a_{cm_{2}} = \frac{3 g sin θ}{5} \dots .. Hollow a_{1} > a_{2} t_{1} < t_{2}$

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Calculation of M.I.

⏱ 2mℹ️ Source: PYQ_2025

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