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Can some1 help me with this question?

  1. Sep 28, 2009 #1
    can some1 help me with this question??

    A radar station locates a sinking ship at range 18.2 km and bearing 134° clockwise from north. From the same station a rescue plane is at horizontal range 20.0 km, 151° clockwise from north, with elevation 2.33 km. What is the vector displacement from plane to ship, letting i represent east, j north, and k up. Enter answers in this order and include units.

    i tried it myself but i cant get the answer. plz help
     
  2. jcsd
  3. Sep 28, 2009 #2

    drizzle

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    Gold Member

    Re: can some1 help me with this question??

    hello yj-k91 and welcome to PF :smile:
    consider the radar station as the original point [zero point], then represent the position of both ship and plane in the form of:

    Vship=x1i+y1j+z1k

    Vplane=x2i+y2j+z2k

    now, x and y values can be calculated using the given angles and distances [note that the angles are clockwise from the y-axis], the vector displacement from plane to ship will be:

    Vd=Vship-Vplane
     
  4. Sep 28, 2009 #3
    Re: can some1 help me with this question??

    thank you so much drizzle.
     
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