From Vectors and 2D Motion: Crash Course Physics #4 Episode 4 | 10m 5sVideo has Closed Captions| CC Today we continue on our journey of understanding motion, direction, and velocity.

Combining Vectors Graphically: Students learn to combine component vectors graphically to produce resultants and use the head-to-tail method to do a vector analysis of a route between rooms.

Vectors have units, if you leave them off you are probably a mathematician (just kidding). Also, this notation can be expanded to three dimensions by adding a z-hat or k-hat component.

But what if the two vectors are not in the same direction and they are not perpendicular? Well, here is the key to vector addition: Every vector can be broken into two vectors.