A bird watcher meanders through the woods, walking 0.30 kilometer due east, 0.80 kilometer due south, and 2.60 kilometer in a direction 33 degree north of west. The time required for this trip is 2.50 hour.
(a) Find the magnitude and direction of bird watcher displacement. Use kilometers and hours for distance and time, correspondingly.
(b) Find the magnitude and direction of the bird watcher average velocity.