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2014-04-21T11:22:19+05:30
Intial velocity of bullet is u1=100 m s-1
intial velocity of block is u2=0
mass of bullet m=0.1 kg
mass of block M=0.9 kg
by linear conservation of momentunm
mu1=(M+m)v
v=(0.1)(100)/(01+0.9)=10/1=10 m s-1
therefore velocity of system is 10 ms-1
3 5 3
2014-04-21T15:32:47+05:30
System 's velocity  is 10 ms-1 
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