A plane flies 450 km east from city A to city B in 45.0 min and then 900 km south from city B to city C in 1.50 h. (Assume points east and points north.)
(a) In magnitude-angle notation, what is the plane's displacement for the total trip?
( km ° )
(b) In magnitude-angle notation, what is the plane's average velocity for the total trip?
( km/h ° )
(c) What is the plane's average speed for the trip?