A vector has length 4 and orientation 150o. Express the vector as a column vector.
The 2D vector is ( -3.464, 2.0 )
The steps in this calculation are:
Be cautious about plugging into these formulae and expecting correct answers, especially when programming in C or Java. Math libraries for a programming language can do unexpected things if you are not careful.
There are three places to be especially cautious:
Now would be a good time think about radians. Usually in professional circles, angles are expressed in radians. Angles are measured counterclockwise from the positive x axis (or sometimes a negative angle is measured clockwise from the positive x axis.
There are 2 pi radians per full circle. Or 2 pi radians = 360o
Fill in the blanks so that vector gets the x component and vector gets the y component of the vector.
#include <math.h> #define PI 3.14159265 double length, angle; double vector; . . . length = some value angle = some number of degrees vector = ________________ vector = ________________
(If you don't know C, just pretend this is Java.)