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Homework Help: Finding the y-component from Vectorys

  1. Jan 14, 2009 #1
    1. The problem statement, all variables and given/known data
    Suppose http://psdesignzone.com/PhysicsImages/formula1.gif and [URL]http://psdesignzone.com/PhysicsImages/formula2.gif[/URL] and http://psdesignzone.com/PhysicsImages/formula3.gif. What is the y-component of the sum http://psdesignzone.com/PhysicsImages/formula4.gif?

    2. Relevant equations

    http://psdesignzone.com/PhysicsImages/formula1.gif [URL]http://psdesignzone.com/PhysicsImages/formula2.gif[/URL] http://psdesignzone.com/PhysicsImages/formula3.gif http://psdesignzone.com/PhysicsImages/formula4.gif

    3. The attempt at a solution

    I'm sorry I really don't know what this means :( can anyone help?
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
    Last edited by a moderator: Apr 24, 2017
  2. jcsd
  3. Jan 14, 2009 #2
    Just add up the coefficients.
  4. Jan 14, 2009 #3
    so you're saying 3+3+7-1-2? = 10

    Why is it that?

    Thanks for the help
  5. Jan 14, 2009 #4
    Is there anything in your book regarding vector addition?
  6. Jan 14, 2009 #5
    And no you can't mix coefficients. Do you understand what vector notation is? Like for example what does

    [tex]R = R_x \cdot \vec{i} + R_y \cdot \vec{j} [/tex]

    mean to you?
  7. Jan 14, 2009 #6
    Yes i'm reading it it talks about getting Vector R is the vector drawn from the tail of the first vector to the tip of the last vector.
  8. Jan 14, 2009 #7
  9. Jan 14, 2009 #8
    Ok, thank you for the help
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