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Homework Help: Velocity Vectors

  1. Jan 29, 2008 #1
    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

    Which is True ?

    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
  2. jcsd
  3. Jan 29, 2008 #2


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    Which ones do you think are true?
  4. Jan 29, 2008 #3
    C and D, but i know it's wrong... i just don't understand velocity vectors.
  5. Jan 30, 2008 #4
    i think its C
  6. Jan 30, 2008 #5
    there can be more than one answer, and i still can't figure it out...any help?
  7. Jan 30, 2008 #6
    take a look http://www.glenbrook.k12.il.us/GBSSCI/PHYS/Class/vectors/u3l1b.html" [Broken] if you don't know how to add two vectors.
    Last edited by a moderator: May 3, 2017
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