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What is the x component of ... ?

  1. Sep 1, 2015 #1
    What is the x component of (+2m)ι^?
    Express your answer with the appropriate units.
    x = ____ __
    * My attempted answer was: +2m

    What is the x component of (+2m/s)ι^?
    Express your answer with the appropriate units.
    vx = ____ __
    * My attempted answer was: +2m/s

    What is the x component of (−2m/s)ι^?
    Express your answer with the appropriate units.
    vx= ____ __
    * My attempted answer was: -2m/s

    However, my answers were incorrect and I think they may have incorrect units. Can anybody tell me what I did wrong? Thank you!
     
  2. jcsd
  3. Sep 1, 2015 #2

    BvU

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    I had to read twice to see the ##\hat\imath##.
    Perhaps you are working with a computer ? Or did your teacher mark tha answers as wrong :rolleyes: ? Probably not.

    Perhaps the program wants a space between the 2 and the dimension (as in the template --- --) ?
     
  4. Sep 1, 2015 #3
    The teacher told me that I should ignore positive signs in my answers then they would be correct. Thank you for your interest in helping me!
     
  5. Sep 2, 2015 #4

    BvU

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    So you were doing just fine. Good !
     
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