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[" A bullet of mass "m" moving with velo...

[" A bullet of mass "m" moving with velocity u passes "],[" through a wooden block of mass "M=nm" .The "],[" block is resting on a smooth horizontal floor.After "],[" passing through the block the velocity of bullet "],[" is v.Its velocity relative to belock is- "],[qquad [:.,(nv-u)/(n+1)],[" (1) "(nu-v)/(n+1)," (4) "((n+1)u+v)/(2n+1)]],[" (3) "(nu-v)/(n+1)]

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