Ground Speed of Plane

1
Ground Speed of Plane
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Solving Problems Using Vectors
A pilot wants to fly on a bearing of 69.2. By
flying due east, he finds that a 50-mph wind,
blowing from the south, puts him on course. Find
the ground speed of the plane.
Bottom yellow line is the original route of the
plane. Red line is the wind. Green line is the
new direction of the plane.
50 mph
69.2
3

Solving Problems Using Vectors
A pilot wants to fly on a bearing of 69.2. By
flying due east, he finds that a 50-mph wind,
blowing from the south, puts him on course. Find
the ground speed of the plane.
Calculate the angle inside the triangle.
50 mph
69.2
20.8
90 69.2 20.8
4

Solving Problems Using Vectors
A pilot wants to fly on a bearing of 69.2. By
flying due east, he finds that a 50-mph wind,
blowing from the south, puts him on course. Find
the ground speed of the plane.
c
50 mph
20.8