A) \[\frac{Mv}{M-m}\]
B) \[v\]
C) \[\frac{mv}{M}\]
D) \[\frac{M-m}{m}v\]
Correct Answer: A
Solution :
Total momentum will be conserved. Initial momentum =- Final momentum \[M.v=m\times 0+(M-m)v'\] \[\therefore \]\[v'=\frac{Mv}{M-m}\]
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