In fact, we can work out how you need to steer the skateboard. Tracker has a nice feature that we'll call 'force arrows'. These arrows show you how much force acts on an object at every instant, and in which direction the force acts. So for example, if you were to kick a ball into the air, while the ball was mid-flight, this arrow would always point down and be the same length, even though the ball is moving forward. That's because the only force acting on the ball is gravity, which pulls it straight down, and acts with a constant strength. (For those of you who've studied physics, these arrows denote the acceleration of the center of mass, which by Newton's second law is proportional to the net force acting on the skateboard.)
So you want to know how to ollie? Be warned, it’s not for the faint of heart, and a lot of people have tried and failed and tried some more and still failed and then eventually thrown their boards into a wall out of frustration (I have no idea who those people are). It’s by no means an easy skateboard trick, but if you want to know how to ollie, start with these simple tips: