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Math Help - [SOLVED] Vector problem

  1. #1
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    [SOLVED] Vector problem

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    The problem is A+B+C
    and when i connect them the reactant doesn't fit

    The other problem is A-B-C with the same vectors

    http://tinypic.com/view.php?pic=qx5e6s&s=4

    this is how i solved A-B-C i dont even know were to put the resultant on this one

    Am i doing something wrong or is this like a trick problem?

    I think also i might be over thinking this beacuse all the arrows are slightly tilted.
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  2. #2
    Super Member flyingsquirrel's Avatar
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    Hello,
    Quote Originally Posted by john doe View Post
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    The problem is A+B+C
    and when i connect them the reactant doesn't fit
    The tail of the resultant vector is the tail of the first vector of the sum : \vec{a}. It's head is the head of the last vector of the sum : \vec{c}. Using this :

    [SOLVED] Vector problem-vectors.png

    The other problem is A-B-C with the same vectors

    Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting

    this is how i solved A-B-C i dont even know were to put the resultant on this one
    What you've done is correct. To find the resultant vector \vec{a}-\vec{b}-\vec{c}=\vec{a}+(-\vec{b})+(-\vec{c}) you only have to connect the tail of the first vector of the sum with the head of the last one.
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  3. #3
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    so it would look like this?
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  4. #4
    Super Member flyingsquirrel's Avatar
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    Quote Originally Posted by john doe View Post
    so it would look like this?
    That's it !
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