Relative Velocity: Bird and Train Perspective

[narutodemonki]

PROBLEM 5: A bird is flying due north with a speed of 15 m s. A train is traveling due east with a speed of 15 m s. What are the magnitude and direction of the velocity of the bird from the point of view of a passenger in a trai


ok so I got an answer of 21.2 m/s 45 degree west of north...
the answer at the back was 45 degrees north of west...
does it matter?

 

[lewando]

No, its the same.