Asked by Eden
                A bullet of mass  is fired horizontally with speed  at a wooden block of mass  resting on a frictionless table. The bullet hits the block and becomes completely embedded within it. After the bullet has come to rest within the block, the block, with the bullet in it, is traveling at speed . 
Express your answer in terms of Vi,Vw, and Mb.
            
        Express your answer in terms of Vi,Vw, and Mb.
Answers
                    Answered by
            JC
            
    Vw+b = Vb x sqrt[Mb/(Mb+Mw)]
I've derived it from
0.5xMbx(Vb^2) = 0.5x(Mb+w)x(Vw+b)^2
    
I've derived it from
0.5xMbx(Vb^2) = 0.5x(Mb+w)x(Vw+b)^2
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