Homework Help: Can some1 help me with this question?

1. Sep 28, 2009

yj-k91

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. Sep 28, 2009

drizzle

Re: can some1 help me with this question??

hello yj-k91 and welcome to PF
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

3. Sep 28, 2009

yj-k91

Re: can some1 help me with this question??

thank you so much drizzle.