Physics behind backside 50-50: Why is it hard to lock in SCIENTIFICALLY??

You can view 3D models from here:
https://whythetrick.io/bs-50-50/

This is the first time I make a 3d model that features a flat ledge. Honestly, it took me quite a long time to make one and the script of this video is quite messy.

Anyway, we attempt to break down common problems that we experience while trying backside 50-50 grind in skateboarding using 3d models and physics theories.

Please take a moment and try to study this in detail.
I'm trying to eliminate subjectivity from my explanation as much as possible by referring to scientific and physics theories. Please use my 3D models to solve your "why."

#skateboarding
#ledge #bs5050 #grind
#howtoskate
#スケートボード
#トレフリップ
#3D
#blender
#three.js

Traditionally, skateboarding how-to videos have always been subjective and the majority of explanations are based on speakers' experiences.
To avoid relying on my personal experiences, please fully utilize the 3D models.

All skaters have different questions.
So that you can analyze skateboarding tricks in detail and solve your "whys," those 3D models are made fully interactive.

The 3D models feature these functions below:
- change camera angle
- adjust play speed
- change transparency
- display gridlines, etc.

Aside from that, I try to explain concepts of skateboarding tricks based on facts, calculations, scientific and physics theories. I may make mistakes so please leave a comment if you find anything.