A plane flies from city A to city B. City B is 1540 km west and 1160 km south of city A. what is the total
displacement and direction of the plane?

a.1930 km, 37.0° south of west
b. 1850 km, 37.0° south of west
c.1930 km, 43.0° south of west
d.1850 km, 43.0° south of weest