Equivalent Vectors

In Physics, we use vectors as measurements.  A vector quantity has magnitude (size & unit) and direction (N, E, S, W).  Another way of remembering vectors is "how much and which way".  Velocity is an example of a vector because it tells how fast an object is going and in which direction.  In the picture above, there is two columns; one of an example of an equivalent vectors, and the other is an example of a non-equivalent vectors.  The reason the left column arrows are equivalent to each other is because they both are pointing North and are relatively the same size.  In the right column, we can tell that these two arrows are not equivalent vectors because first of all, they are pointing in two different directions, and second of all, the green arrow is shorter than the pink arrow.  A vector is only equivalent to another vector when both its' magnitude and direction are the same.