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Homework Help: Simple Vector Question

  1. Jan 16, 2009 #1
    1. In the question

    1/2B X (1/2A + 1/2C)

    Where B and A and C are all vectors what would I do first.

    I know first the brackets, 1/2A + 1/2C = another vector

    now do I do 1/2*B then cross the answer with the vector. OR do I cross B with the vector then multiply the answer by the scalar 1/2?

  2. jcsd
  3. Jan 16, 2009 #2
    nevermind i just tried it and i get the same answer either way so its ok :D
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