In an attempt to escape a desert island, a castaway
builds a raft and sets out to sea. The wind shifts a great
deal during the day and he is blown along the following
directions: 2.50 km and 45.0° north of west, then 4.70 km
and 60.0° south of east, then 1.30 km and 25.0° south of
west, then 5.10 km straight east, then 1.70 km and 5.00°
east of north, then 7.20 km and 55.0° south of west, and
finally 2.80 km and 10.0° north of east. Use a graphical
method to find the castaway’s final position relative to the
islandA delivery man starts at the post office, drives 40 km
north, then 20 km west, then 60 km northeast, and finally
50 km north to stop for lunch. Use a graphical method to
find his net displacement vector.