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Homework Help: What is the value of its x-component?

  1. Feb 9, 2009 #1
    A velocity vector 55 degrees below the positive x-axis has a y-component of -13 m/s.

    What is the value of its x-component?

    Ive tried many different ways for this problem but i keep getting it wrong! help!
  2. jcsd
  3. Feb 9, 2009 #2


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    Homework Helper

    Welcome to PF.

    If your vector is pointing 55° down then draw the diagram.

    You have a triangle - you have the angle - they tell you a side - then figure out the length of the hippopotamus.
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