A regional airline flight consists of two legs with an intermediate stop. The airplane flies 400 km due north from airport A to airport B. From there, it flies 300 km due east to its final destination at airport C.
(a) What is the plane’s displacement from its starting point?
(b) If the first leg takes 45 min and the second leg 30 min, what is the average velocity for the trip?
(c) What is the aver-age speed for the trip?
(d) Why is the average speed not the same as the magnitude for the average velocity?