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Homework Help: Net force given force vectors

  1. Oct 23, 2009 #1
    1. The problem statement, all variables and given/known data

    I am given two two dimensional velocities one final one initial and the time taken for the velocity of the object to change. I am also given the mass and asked to calculate net force.

    The calculations are very easy but when asked for the net force am I supposed to give the whole vector value or simply state the two vectors? I am pretty sure I must state the total vector value but I'm not positive.

    so either

    F= (11.25N i)+(-22.5N j)


    F= sqrt((11.2Ni)^2+(-22.5Nj)^2)= 25.16
  2. jcsd
  3. Oct 23, 2009 #2


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    Homework Helper

    I would go with the vector answer. Nothing wrong with including both if that is possible.
  4. Oct 23, 2009 #3
    Ok thanks
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