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Plane wants to reach destination
o
700km[S15 W]
from its starting position
Plane travels
400km/h
in still air
There is a
40km/h
wind blowing
from [W47 S]
o
What direction should the plane fly in order to reach its destination?
47
o
15
o
700
40
Find the angle
d
= 735.5577km
d
x
d
y
700
15
o
v
1y
= 700cos15
v
1x
= 700sin15
47
o
40
v
2y
= 40sin47
v
2x
= 40cos47
700
40
d
x
v
1x
=
v
2x
=
- 40cos47
700sin15
= 208.45
d
y
v
1y
=
v
2y
=
- 40sin47
700cos15
= 735.55
d
=
735.55
- 208.45
2
2