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Trying to separate vector into x and y components

  1. Sep 29, 2016 #1
    1. The problem statement, all variables and given/known data
    ##\overrightarrow{a} = (58m/s^2, 40°## below positive ##x## - axis)
    Find the ##x##- and ##y##-components of the vector.
    Express your answers using two significant figures. Enter your answers numerically separated by a comma (##a_x,a_y##).
    2. Relevant equations
    None I can think of.

    3. The attempt at a solution
    I've already done this all out on paper, it seems like simple enough trig, and should be:
    ##a_x = -58sin(40) = 58sin(320) = -37## (correct to two significant figures)
    ##a_y = 58cos(40) = 58cos(320) = 44## (correct to two significant figures)
    Therefore, the components as a comma separated list should be "##-37,44##".

    Yet this is not the answer. What am I doing wrong?

    Edit: I realized after drawing it out that I switched the signs for ##x## and ##y##. I'm a fool, please disregard this thread.
     
  2. jcsd
  3. Sep 29, 2016 #2
    Have you drawn a diagram?
     
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