The video below shows the motion of a puck sliding on a low-friction air table (like a science-y kind of air hockey table). The table is sloped so the puck slides toward the bottom of your screen. Although the puck looks like it is in free fall, the vertical acceleration in this case is not 9.8 m/s/s. Your goal for this section is to use the video to determine the vertical acceleration of the puck as it moves on the surface