notes for Feb 2

The only new concept I introduced in class today was the idea of the unit vector.

I did one physics-type example problem with velocity. The vector idea was that the velocity was given as magnitude and direction, and you need to break it down into horizontal and vertical components. Recall too that we have the old "projectile motion" model equation from our unit on quadratics.

We will go over several other physics-type problems in class tomorrow, including navigation and tension problems