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Homework Help: Finding the resultant of two vectors

  1. Sep 10, 2013 #1
    1. The problem statement, all variables and given/known data
    S is a vector 24.3 units in magnitude and points at an angle of 54.8 degrees below the negative x-axis. T is a vector 18.8 units in magnitude and points at an angle of 37.7 degrees above the positive x axis. Find the resultant of the two vectors by resolving into rectangular components.

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Sep 10, 2013 #2
    Sketch right triangles involving S and T and use cosine and sine to find each vector's x and y components. Then add the components.
  4. Sep 10, 2013 #3
    How do I know what the other angles are aside from 90 degrees?
  5. Sep 10, 2013 #4
    You can use the tangent to find them, since you know the length of the adjacent and opposite sides.
  6. Sep 10, 2013 #5
    The problem statement gives one of the angles of each triangle. Did you remember that the complementary angles of a right triangle sum to 90 degrees?
  7. Sep 17, 2013 #6


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    Staff: Mentor

    Eddie, you need to complete the template before we can help you.
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