Question

An airplane is heading 040 degrees with an airspeed of 800 km/h. A wind from the west causes it to have the course 045 degrees. Find the resultant groundspeed of the airplane and the speed of the wind.

Answer 1

Have you drawn it out?

Answer 2

Yes I have

Answer 3

That's what I drew

Answer 4

It's kind of strange that a wind from the west is pushing the airplane in the west direction. Do is give you any more information about the 40 degree angle? Is it 40 degrees north above west?

Answer 5

No it's because it's true bearing, not quadrant bearing so all the angles are clockwise from north

Answer 6

Oh I understand now. I will see if I can figure it out

Answer 7

Kay thanks :)

Answer 8

So I have set up a drawing. We want to find the groundspeed (the velocity of the plane to the ground V(PG))