I'm have a hard time figuring out how to do this problem:
A sailboat tacking against the wind moves as follows: 3.8 km at 45° east of north, 4.5 km at 55° west of north, 2 km at 45° east of north. What is the net displacement for the entire motion? How many degrees east of north is the sailboat?
The Attempt at a Solution
I thought that to find the net displacement you had to simply add the vectors:
3.8+4.5+2=10.3 However, this is not right and I don't understand how else to solve the problem.