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JEE Main 2002
Exam
JEE Main
Year
2002
Subject
Physics
Chapter
Center of Mass, Momentum and Collision

JEE Main 2002 · Physics · Center of Mass, Momentum and Collision

Two identical particles move towards each other with velocity 2 v...

Two identical particles move towards each other with velocity 2v2 v and vv respectively. The velocity of centre of mass is

Options

  1. Av
  2. Bv/3
  3. Cv/2
  4. Dzero

Correct answer

C. v/2

Step-by-step solution

Conserving Linear Momentum 2 Mvc=\mathrm{Mv}_{\mathrm{c}}=2 Mv−Mv⇒vc=v\mathrm{Mv}-\mathrm{Mv} \Rightarrow \mathrm{v}_{\mathrm{c}}=\mathrm{v}/ 2
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