A ferry is crossing a river. The ferry is headed

due north with a speed of 1.2 m/s relative to
the water and the river’s velocity is 3.5 m/s
to the east.
Find the direction in which the ferry is
moving (measured from due east, with counterclockwise positive).
Answer in units of ◦

1 answer

tan(Θ) = 1.2 / 3.5

direction is Θº north of east