Please read the following two pages at the Physics Classroom Website.
http://www.physicsclassroom.com/class/vectors/Lesson-1/Vectors-and-Direction
and
http://www.physicsclassroom.com/class/vectors/Lesson-1/Vector-Addition
Then do the new short assignment at the university of Texas.
https://quest.cns.utexas.edu/
The assignment is due Sunday night.
