Two masses of \( 0.25 \mathrm{~kg} \) each moves towards each other with speed \( 3 \mathrm{~ms}...

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Two masses of \( 0.25 \mathrm{~kg} \) each moves towards each other with speed \( 3 \mathrm{~ms}^{-1} \) and \( 1 \mathrm{~ms}^{-1} \) collide and stick together. Find the final velocity
[Odisha JEE 2011]
(a) \( 0.5 \mathrm{~ms}^{-1} \)
(b) \( 2 m s^{-1} \)
(c) \( 1 m s^{-1} \)
(d) \( 0.25 \mathrm{~ms}^{-1} \)
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