My question: Which force vector (A, B, C, or D) represents the APPROXIMATE direction in which the boat is travelling as a consequence of the wind?
My approach: I looked for which vector combination would be proper to draw a Triangle of Forces for, and it appears to me that it is Fwind + Fboat + Fd. Is my reasoning correct, or should/could I take another approach?
The same method seems to be applicable to aircraft, since both boats and aircraft travel through fluid, is that true?
Awaiting your valuable opinions!