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Question: Answered & Verified by Expert
A moving body of mass $m$ and velocity $3 \mathrm{~km} / \mathrm{h}$ collides with a rest body of mass 2 m and stick to it. Now the combined mass starts to move. What will be the combined velocity?
PhysicsCenter of Mass Momentum and CollisionJIPMERJIPMER 2013
Options:
  • A $4 \mathrm{~km} / \mathrm{h}$
  • B $1 \mathrm{~km} / \mathrm{h}$
  • C $2 \mathrm{~km} / \mathrm{h}$
  • D $3 \mathrm{~km} / \mathrm{h}$
Solution:
2182 Upvotes Verified Answer
The correct answer is: $1 \mathrm{~km} / \mathrm{h}$

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