A sailboat tacking against the wind moves as follows: 4.7 km at 37o east of north, 4.4 km at 25o west of north, and 2.2 km at 36o east of north. The entire trip takes 1 h and 40 min. What is the displacement of the sailboat at the end of the trip? What is the magnitude of the average velocity of the sailboat for this trip?

What is the magnitude of the average instantaneous speed of the sailboat for this trip?

At what angle would the boat have sailed to reach its destination directly? Assume north is 0o and east is 90o.