The new unit we are starting this week is on 2 dimensional kinematics and vectors. 2-D kinematics is basically kinematics on both the x and y axis. To figure out problems you need measurements on the x and y axis. Its the same "plug in and calculate" idea but with quantities of the x and y axis. For example, Something traveling from the ground into the air at a certain angle then back down to the ground. You would have vertical and horizontal velocities, forward acceleration and downward acceleration and so on. Vectors are drawn as arrows. You can solve these by graphing or trigonometry. A vector has magnitude (size and unit) and also direction, unlike a scalar unit. I compare these to transportation, such as cars, boats, and aircrafts. These things can all be measured with a vector unit, they have a magnitude and direction (ex. 40 m/s east)