A canoe has a velocity of 0.35 m/s southwest relative to the earth. The canoe is on a river that is flowing 0.65 m/s east relative to the earth. Find the velocity (magnitude and direction) of the canoe relative to the river.
The Attempt at a Solution
0.930985 is the magnitude.
Then I have no clue how to get the angle in terms of counterclockwise from east.
Thanks very much in advance!