Two blocks each of mass \( m \) are connected to a spring of \( \ma...

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Two blocks each of mass \( m \) are connected to a spring of
\( \mathrm{P} \) spring constant \( k \). If both are given velocity \( v \) in opposite

W directions, then the maximum elongation of the spring is
[Odisha JEE 2011]
(a) \( \sqrt{\frac{m v^{2}}{k}} \)
(b) \( \sqrt{\frac{2 m v^{2}}{k}} \)
(c) \( \sqrt{\frac{m v^{2}}{2 k}} \)
(d) \( 2 \sqrt{\frac{m v^{2}}{k}} \)
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