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    Sharlet999's Avatar
    Sharlet999 Posts: 3, Reputation: 1
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    #1

    Jan 18, 2018, 01:41 AM
    Physics Trouble
    Ball A, with a mass of 10kg, is moving to the right at 20 m/s. Ball B is moving to the left at 20 m/s. Upon collision, Ball B comes to a standstill, and Ball A moves to the left at twice its original speed. What is the mass of Ball B?

    Curlyben's Avatar
    Curlyben Posts: 18,473, Reputation: 1857
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    #2

    Jan 18, 2018, 01:46 AM
    What do YOU think ?
    While we're happy to help, we wont do all the work for you.
    Sharlet999's Avatar
    Sharlet999 Posts: 3, Reputation: 1
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    #3

    Jan 18, 2018, 01:49 AM
    I truly don't know. The answer I originally came up with was wrong but it doesn't tell me why. I want to better understand why I got it wrong.
    Curlyben's Avatar
    Curlyben Posts: 18,473, Reputation: 1857
    Admin & Wine Expert
     
    #4

    Jan 18, 2018, 02:15 AM
    Show us what you have done and we should be able to guide you.
    Sharlet999's Avatar
    Sharlet999 Posts: 3, Reputation: 1
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    #5

    Jan 18, 2018, 02:21 AM
    I just realized what I got wrong! Sorry for the trouble.

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