In the given arrangement shown in figure, surface is frictionless, string is inextensible and ma...

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In the given arrangement shown in figure, surface is frictionless, string is inextensible and massless,
\( \mathrm{P} \) pulley B is frictionless. Length of the string is \( \ell \).

W
At \( t=0, A B=\ell \). Find out the velocity of block
\( \mathrm{C} \), when distance between blocks is minimum,
if it was released from rest at \( t=0 \).
(1) \( \sqrt{2 g \ell} \)
(2) \( \sqrt{\mathrm{g} \ell} \)
(3) \( \sqrt{\frac{g}{2} \ell} \)
(4) \( \sqrt{\frac{g \ell}{4}} \)
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