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Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A sphere and a hollow cylinder roll without slipping down two separate inclined planes and travel the same distance at the same time. If the angle of the plane down which the sphere rolls is $30 °$ . The angle of the other plane is

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Answer:

Solution:

For sphere, $K_{1}^{2} = \frac{2}{5} R^{2}, θ_{1} = 30 °$ ,

For hollow cylinder, $K_{2}^{2} = R^{2}, θ_{2} = ?$

$\frac{1 + \frac{2}{5}}{\sin 30 °} = \frac{1 + 1}{\sin θ_{2}}$

$\sin θ_{2} = \frac{5}{7} = 0.7143$

$θ = 45 °$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:RotationSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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