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Homework Help: How to calculate vector

  1. Aug 28, 2015 #1
    1. The problem statement, all variables and given/known data

    2. Relevant equations
    magnitude of vector u = sqrt(u1^2 + u2^2 + u3^3)

    3. The attempt at a solution
    I'm not sure how to do this or draw a picture. Could someone show me how to do this? Thanks!
  2. jcsd
  3. Aug 28, 2015 #2


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    Science Advisor
    Homework Helper
    2017 Award

    You can begin with a coordinate system. (PF rules require something of an effort is made by the requester...)
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