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Additional Examples
Vector Galculations
The following examples use polar /rectangular coordinate conversions
to do
vector operations.
Adding Tlro Uectors
in
Polar Goordinates
The sum of two vectors
r1i
+
yi
and
x2i
+
y2i
is (x1
+
xz)i
+
Ur +
Az)j.
Erample: A
ship travels
150
miles on
a course 50o east
of north,
and
then travels an additional 80 miles on a course
15o
west
of
north.
How far is the ship from its starting
point?
In what
direction must the ship travel to return to its starting point?
Angles are measured counterclockwise
from
0o. East
is
0o.
r54
9: Additional
Examples
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