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Two equal masses \( m_{1} \) and \( m_{2} \) moving along the
\( \mathrm{P} \) same straight line with velocities \( +3 \mathrm{~m} / \mathrm{s} \) and -5

W \( \mathrm{m} / \mathrm{s} \) respectively collide elastically. Their velocities after the collision will be respectively
(1) \( +4 \mathrm{~m} / \mathrm{s} \) for both
(2) \( -3 \mathrm{~m} / \mathrm{s} \) and \( +5 \mathrm{~m} / \mathrm{s} \)
(3) \( -4 \mathrm{~m} / \mathrm{s} \) and \( +4 \mathrm{~m} / \mathrm{s} \)
(4) \( -5 \mathrm{~m} / \mathrm{s} \) and \( +3 \mathrm{~m} / \mathrm{s} \)
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