Vp + 64[225] = 470[90o] = 470i.
Vp + 64*Cos225 + i64*sin225 = 470i.
Vp - 45.3 - 45.3i = 470i.
Vp = 45.3 + 515.3i = 517km/h[85o]. =
velocity of the plane.
Direction = 85o N. of E. = 5o E. of N.
An airplane flies at airspeed (relative to the
air) of 470 km/h . The pilot wishes to fly due
North (relative to the ground) but there is a
64 km/h wind blowing Southwest (direction
225◦).
In what direction should the pilot head the
plane (measured clockwise from North)?
Answer in units of ◦.
1 answer