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## Homework Statement

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?

## Homework Equations

## 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.