Q. 22

A bullet of mass

Answer :

Given,

Mass of bullet = m1





Mass of gun = m2



Initial speed of bullet = u1



The initial speed of gun = u2



Initial momentum = pi



Final speed of bullet = v1



final speed of gun = v2



Initial momentum =



Using Newton’s second law of motion, i.e.



Now since no external force acts on the system hence,



Hence, momentum









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