Two particles undergo a collision. After collision, one of the particles has a momentum P→ in their center of mass frame. What will be the momentum of the other particle in the same reference frame?
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a
0
b
−P→
c
−P→2
d
−2P→
answer is B.
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Detailed Solution
Net momentum in centre of mass frame should be zeroso P→+P→′=0⇒P→′=−P→