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Math Help - Position Vector

  1. #1
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    Position Vector

    The position vector of a body, at time t, relative to an origin is given by the vector:



    Find its x,y,z co-ordinates when t = 1.1

    For this i assumed 8sin(4t) represented the x co-ordinate and so on for the y and z. But simply subbing in 1.1 doesnt work

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  2. #2
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    Re: Position Vector

    Hello, MMCS!

    Did you have your calculator in radian mode?
    Thanks from topsquark
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  3. #3
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    Re: Position Vector

    i tried doing the caluculation in both modes and dont get the answer, am i right to think, for the co-ordinate it would simply be:

    8*sin(4*1.1)
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