A body of mass \( m_{1} \) moving with a velocity \( 3 \mathrm{~ms}^{-1} \) collides with anothe...

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A body of mass \( m_{1} \) moving with a velocity \( 3 \mathrm{~ms}^{-1} \) collides with another body at rest of mass \( m_{2} \). After collision the velocities of the two bodies are \( 2 \mathrm{~ms}^{-1} \) and \( 5 \mathrm{~ms}^{-1} \) respectively along the direction of motion of \( m_{1} \) The ratio \( m_{1} / m_{2} \) is
[EAMCET (Engg.) 2000]
(a) \( \frac{5}{12} \)
(b) 5
(c) \( 1 / 5 \)
(d) \( 12 / 5 \)
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