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Q.

A particle of mass m, kinetic energy K and momentum p collides heads on elastically with another particle of mass 2m at rest. Match the quantities in Column – I (quantities after collision) to their respective values in column. II

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answer is A-R,B-P,C-Q,D-S .

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Detailed Solution

p1+p2=p.....(1) Further, K1+K2=K ⇒ p122m+p224m=p22m ⇒ 2p12+p22=2p2.....(2)Solving these two equations we get,p2=43p  And p1=−p3,K1=K9 And K2=8K9
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