An airplane flies at 150 km/h in a direction 30o South of East. At the same time a 50 km/h wind blows the plane in a direction 25o West of South. What is the plane’s resultant velocity with respect to compass points on the Earth?

1 answer

150 cis120° + 50 cis155° = -120.3 + 151i
In polar form, that would be 193 km/hr @ E128.5°S