Vectors

So this weekend's topic is VECTORS. (Think of Despicable Me...) Vector quantities have both magnitude and direction. A vector is represented by any one of the two arrows I am holding in my picture. I used arrows because vectors are graphically represented by arrows: the length of the arrow represents the magnitude of the vector. You connect vectors head to tail, so you add the tail of the second vector to the head of the first vector, like how I do in my photo. The resulting vector (the sum of the two vectors) is called the resultant. The converse is also true: any vector can be broken up into two or more other vectors (applying the ブレクrule, not the フレイタス rule). And as Mr. Freitas taught us via music on Friday, the hypotenuse of a right triangle represents the sum of the two vectors (the opposite side and the adjacent side). Now let's hear him belt out a parody of (I've Had) The Time Of My Life... just kidding...