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## Homework Statement

The course and ground speed of a plane are 70 degrees and 400 miles per hour respectively. There is a 60 mph wind blowing from the south. Find the approximate direction and air speed of the plane.

## Homework Equations

net force = force1 + force2

## The Attempt at a Solution

Net Direction = 70-60 = 10

Net Speed = 400- x = 10 x = 410

10 degrees and 410 speed. The teacher said that was wrong though, what am I doing wrong?