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Question about momentum

  1. Dec 20, 2006 #1
    I'm trying to help my high school kid solve some momentum problems, and one of us must be missing something simple. The question is "What has more momentum a Mack truck (ie, very large object) that is still or a small truck that is moving?" I thought that momentum=mass*velocity. If this is the case, then the Mack truck would have a 0 and the small truck would have a positive number. However, my kid tells me the answer is the Mack truck. Am I missing something?

    Thanks in advance.
     
  2. jcsd
  3. Dec 20, 2006 #2
    Don't think so.
     
  4. Dec 20, 2006 #3
    You're right.

    [tex]P=mv[/tex]
     
  5. Dec 21, 2006 #4
    momentum

    your are correct
    movementum is defined as

    P = mv

    where P is linear movementum, m is mass of object and v is velocity.
     
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