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    gigglez3576's Avatar
    gigglez3576 Posts: 8, Reputation: 1
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    #1

    Apr 11, 2011, 02:29 PM
    Impulse Question Help
    A 6kg bowling ball is traveling at 10 m/s is brought to rest after colliding with a wallin a collision that lasts .1s.
    What is the impulse experienced by the ball?

    I calculated that it was -60kgm/s but that is incorrect. Help?
    jcaron2's Avatar
    jcaron2 Posts: 986, Reputation: 204
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    #2

    Apr 11, 2011, 07:32 PM
    Hmmmm... it certainly seems like a pretty straightforward question.

    Impulse = change in momentum = 0 - 6*10 = -60 kg*m/s.

    Your answer certainly looks correct to me.

    Do you know what the supposedly "correct" answer is? It could be something stupid like "60 kgm/s backwards", which is exactly the same thing as what you got, of course.
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