In 1 and 2, find the magnitude and direction of the given ...
In 1 and 2, find the magnitude and direction of the given vector.
1. (2, -3)
2. (-5, -12)
3. Find a polar representation of the vector (12, 16)
4. A plane’s velocity is represented by [550, 160º], where the magnitude is measured in miles per hour and the direction is in degrees counter-clockwise from due east.
a. Sketch the vector for the velocity.
y
x
b. Give the vector in component form.
c. Interpret the components.
5. A fish is caught at the end of a 15-meter fishline. Its angle with the horizontal is 37º. Assume the fishline is taut.
. o
37º
a. Write a polar representation for the fish’s position, using the end of the fishing rod (point O) as the origin.
b. Compute a component representation.
c. Interpret the components.
6. Suppose A = (1, -2) and B = (x, y) are points in a plane and [pic] is the vector from A to B. If [pic] = [6, [pic]], find the coordinates of B.
7. Find the component representation of [3, 210º] and sketch the vector.
y
x
8.
a. Find the component representation of the vector shown at the right.
b. Sketch the vector in standard position.
[pic]
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