- #1
wuki1
- 9
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Homework Statement
an airplane, whose air speed is 580km/h, is supposed to fly in a straight path 38N of E. But a steady 72km/h wind is blowing from the north. In what direction should the plane head? i know the answer is 43.6 N of E but i am not completely sure how to get it
Homework Equations
so i think i have to use 580cos(38) and 580sin(38) but when i do it this way it does not work.
My friend told me to use sin/72=sin(38+90)/580 which does work but i am not completely sure if that's what i should use
The Attempt at a Solution
before i used 580cos(38) 580sin(38) 72cos(270) and 72sin(270) but i got something like 43.2 instead of 43.6 if somebody could explain it to me it would help. thank you