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    Got it.. sorry
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    (Original post by Lambert87)
    A: Initial Momentum: 8000 x 3 = 24000 kg ms-1
    Agreed.

    Total final momentum: (8000 x 1) + 5000V

    8000 + 5000V = 24000

    5000V = 24000 - 8000 = 16000

    V = 16000/5000 = 3.2 ms-1
    Agreed.

    I am completely confused... ?
    What is confusing?
 
 
 
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Updated: October 29, 2017
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