A Misconception About The Flick Direction
Mechanism / Why It Happens
The very idea of trying to flick upward simply because your foot rises relative to the ground is fundamentally mistaken.
One argument often given in favor of flicking upward is that your foot is always moving upward relative to the ground. However, from a physics standpoint, this reasoning is incorrect. For example, imagine that a skateboard is floating in midair as shown in the video. To make it flip, you would apply a downward force, right? But if you and the board were inside a rocket, you could be applying a downward force while still continuously rising relative to the ground.
What to Do
What matters is whether the knee supporting the flicking foot continues to rise.
The rocket example is intentionally extreme, but in an actual kickflip, pay attention to the height
