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5. [1pt] A sailboat tacking against the wind moves as follows: 2.8 km at 27° east of north, 4.7 km at 28° west of north, and 3.9 km at 28° east of north. The entire trip takes 4 h 25 min. What is the magnitude of the displacement of the sailboat at the end of the trip ?

Translated: Add the vectors in the question.

Current answer:

/\x = 2.8*sin(27) + 4.7*sin(-28) + 3.9*sin(28) = .805 km

/\y = 2.8*cos(27) + 4.7*cos(-28) + 3.9*cos(28) = 9.910 km

/\d = sqr(/\x^{2}+ /\y^{2}) = 9.943 km =9943m

What's wrong?

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# Homework Help: HOW can I not get this?

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