Section 1 - (Vectors How and Why) Remember Those Vectors   Showing Direction   Physics isn't hard Section 2 - (Adding Vectors) What is Vector Addition?   Setting Up Vectors   Making Vectors Easy Section 3 - (Necessary Math Skills) Many Principles Needed   Pythagorean Theorem   Basic Trig Functions   Law of Sines & Cosines Section 4 - (Example Problems) Example 1   Example 2