Work Energy And Power Ques 62
62. Two equal masses $m_1$ and $m_2$ moving along the same straight line with velocities $+3 $ $m / s$ and $-5 $ $m / s$ respectively, collide elastically. Their velocities after the collision will be respectively.
[1998]
(a) $-3$ $ m / s $ & $+5 $ $m / s$
(b) $+4 $ $m / s$ for both
(c) $-4$ $ m / s $ & $+4 $ $m / s$
(d) $-5$ $ m / s $ & $+3 $ $m / s$
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Answer:
Correct Answer: 62.(d)
Solution:
- (d) In elastic collision, the velocities get inter changed if the colliding objects have equal masses.
BETA
