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Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

In the figure, a sphere of radius $2 m$ rolls on a plank. The accelerations of the sphere and the plank are indicated. The value of angular acceleration is

Options:

Answer:

Solution:

As the sphere rolls, the lowest point of the sphere should have the same acceleration as the plank.

Hence, $a_{1} = αR - a_{2}$

$2 = 2 α - 4$

$\Rightarrow α = 3 rad s^{- 2}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:RotationSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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