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Solution *Let, m1= 0.011 kg v1= 1000 m/s m2=5.5 kg and v2= be the recoil velocity *Equation: M1V1+M2V2=0 a. (0.011 kg)(1000 m/s) + (5.5 kg)(v2)=0 11 kgm/s + 5.5 kgv2 = 0 5.5 kgv2 = -11 kg v2= -2 m/s b. (0.011 kg)(1000 m/s) + (120 kg + 5.5 kg)(v2)=0 11
