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Vectors using the component method

  1. Feb 10, 2013 #1
    Use the component method to add the vectors and shown in the figure. The length of is 2.55 m and the angle θ = 31.5°. Express the resultant + in unit-vector notation.

    The answer should be in the form of .....i + ........j

    so far i have done

    3*cos(31.5) = 2.56 so this is for ....i but I am unsure of how to find vector j for the y axis.

    Please could someone advise me. All help and guidance given is much appreciated

  2. jcsd
  3. Feb 10, 2013 #2


    Staff: Mentor

    may the sin() be with you.
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