Work Energy and Power - Result Question 62

65. 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) $-5 m / s &+3 m / s$

Show Answer

Answer:

Correct Answer: 65. (d)

Solution:

  1. (d) In elastic collision, the velocities get inter changed if the colliding objects have equal masses.