- #1
- 53
- 0
Homework Statement
http://www.tunerspec.ca/school/question7.jpg [Broken]
The Attempt at a Solution
Not sure where to start. I want to get the x & y coordinates of rAB but I'm not sure how.
Last edited by a moderator:
Can you get the angle of OA from the positive x-axis?How? :uhh:
good. what's the relationship between that OA and angle... and the OB angle?Using
[tex]tan x = \frac{711j}{418i}[/tex]
[tex]x = 59.55^{\circ}[/tex]
Oops... I thought I posted a reply. Sorry about that!I'm not sure...
If this ends up being easy I'm going to feel stupid. :tongue:
yup. looks right to me.I'm getting a length of 824.77m for side OA. It looks too big according to the diagram, is it right?
Assuming it is...
I used the cosine law to determine the angle for AOB (43.99) and subtracted that from angle x (determined previously.) This gave me an angle of 15.56 from the x-axis to OB. Then using the length of 606m and the angle of 15.56 I determined the x and y coordinates to be 583.79m and 162.56m, respectively.
Is that right?