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Velocity Vectors

  1. Feb 1, 2008 #1
    [SOLVED] Velocity Vectors

    The velocity vector V1 has a magnitude of 3m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of 2m/s. The sum of the two is V3, so that V3 = V1+V2

    A) The magnitude of V3 can be 0
    B) The magnitude of V3 can be 6m/s
    C) The magnitude of V3 can be 5m/s
    D) The x-component of V3 can be -1m/s
    E) The magnitude of V3 can be -4m/s
    F) The magnitude of V3 can be 3m/s

    Which are true and which are false?

    I can't figure this out, if someone would even give me a hint... please I'd really appreciate it.
     
  2. jcsd
  3. Feb 1, 2008 #2
    Try a drawing
     
  4. Feb 1, 2008 #3
    tried that...still don't understand
     
  5. Feb 1, 2008 #4
    I think C and F are true...
     
  6. Feb 1, 2008 #5

    hage567

    User Avatar
    Homework Helper

    Start with the first one. Is there anyway those two vectors can add up to zero? Do you know what vector addition is?
     
  7. Feb 1, 2008 #6
    i got it, thanks for your help. :)
     
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