A small boat is headed for a harbor 34 km directly northwest of its currentposition when it is suddenly engulfed in heavy fog. The captainmaintains a compass bearing of northwest and a speedof 10.8 km/h relative to the water. The fog lifts 3.0 h later and the captain notes that he isnow exactly 3.7 km south ofthe harbor.
What was the average speed of the current during those 3.0 h? Inkm/h?
In what direction West of North should the boat have been heading toreach its destination along a straight course?
What would its travel time have been if it had followed a straightcourse?