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Homework Help: Adding Vectors

  1. Sep 27, 2010 #1
    Vector F has magnitude of 9. Vector G has magnitude of 2. which of the following vectors could possibly satisfy the vector equation F+G+__=0

    The possibilities are listed with drawn vectors with no degrees, just vectors in space.

    The magnitude possibilities are 5, 2, 8, 6, 12.

    The answer is 8 with the vector drawn to the left and slightly in the y direction.

    I tried solving the problem but it seems impossible without directions included.

    I also tried making a right triangle out of all the vectors because the addition of them are 0.

    Is my reasoning incorrect?
  2. jcsd
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