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Math Help - finding a magnitude in a non-orthonormal coordinate system

  1. #1
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    finding a magnitude in a non-orthonormal coordinate system

    Hi everyone, Attached is a diagram showing the problem and my work. I'm trying to find the magnitude of my vector in order to be able to get it in a x-y coordinate form. So far I haven't had any luck, with some magnitudes coming out to be negative! I don't know what I'm doing wrong, but obviously it's something big.

    link to my diagram/work
    https://mail.google.com/a/my.uri.edu....1&disp=emb&zw

    Known, but arbitrary: $\theta _1$, $\theta _2$, $v_x$, $v_y$. I need magnitude(V) (or) $v_E$, and $v_N$
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  2. #2
    A Plied Mathematician
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    Your link is bad. Try just typing up the problem and your work so far.
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  3. #3
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  4. #4
    A Plied Mathematician
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    Your link is still bad. About the only way to upload images at this point is pdf files. Try that, or try typing up your problem (it might be easier than you think).
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  5. #5
    Grand Panjandrum
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    Quote Originally Posted by Salterium View Post
    You cannot link to something in your mail box it is not public. You need to upload whatever you think you are posting to a public site (if it is an image to an image hosting site) and link to it there.

    If it does not contain an image in an essential manner, you could of course just type the question, or cut and paste text.

    CB
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