A small boat is headed for a harbor 31 km directly northwest of its current posi
ID: 1708748 • Letter: A
Question
A small boat is headed for a harbor 31 km directly northwest of its current position when it is suddenly engulfed in heavy fog. The captain maintains a compass bearing of northwest and a speed of 9.4 km/h relative to the water. The fog lifts 3.0 h later and the captain notes that he is now exactly 3.7 km south of the harbor.
a) What was the average speed of the current during those 3.0 h? ________km/h
b) In what direction should the boat have been heading to reach its destination along a straight course?
_________° west of north
(c) What would its travel time have been if it had followed a straight course?
____________ h
Explanation / Answer
a.) is 31 km because they tell u that in the first sentence b.)is north because the captain was bearing of northwest so he wanted to reach the northwest c.)is 6.7 because u add the 3.7 km and 3.0 h