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  4. In case of pure rolling, what will be the velocity of point A of the ring of radius R ?

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Q. In case of pure rolling, what will be the velocity of point $A$ of the ring of radius $R$ ?Physics Question Image

System of Particles and Rotational Motion

Solution:

$v_{n e t} =\sqrt{v_{c m}^{2}+v_{c m}^{2}}$
$=v_{c m} \sqrt{2}$

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