Asked by Anonymous
                A 50 kg boy running at 5m/s jumps into a 20 kg traveling in the same direction at 1.5 m/s .find their common final velocity.
            
            
        Answers
                    Answered by
            oobleck
            
    conserve momentum
50*5 + 20*1.5 = (50+20)v
    
50*5 + 20*1.5 = (50+20)v
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