https://scratch.mit.edu/projects/1261046235
Wasn't able to finish cs50 in time last year, saw a couple of lectures and only got to do a bit of this. Now it's finished and i published it. Very nooby of course, it's based on a physics simulator i did when i was younger. Quite simple, the basis is to have x/y position, speed and accel. Every tick all of them change. Keys mostly add acceleration, then you have bounces and some other fun stuff added in, like the moving boxes.