You have a boat that is capable of moving at 14.5 m/s through still water. You wish to cross a river that flows due north at 5.3 m/s. At what numerical compass heading must you pilot your boat so that you will reach a destination that is due west of your current position?
what is arc tan 5.3/14.5 ?
draw the figure, see if that is correct. Now convert that angle to a compass heading.