Physics Sim

This is a program I am throwing together as a read through "Essential University Physics 2nd ed - R. Wolfson BBS".
I am working through it, but want a way to visualize it as I go. Plus, teaching a program to do it sort of forces me to actually understand what I am doing.

The GUI is powered by MonoGame so it can be cross-platform.

Requirements:
Microsoft .NET Core SDK 2.2.402



References:
Refresher on Computer Graphics.
https://www.scratchapixel.com/lessons/3d-basic-rendering/computing-pixel-coordinates-of-3d-point/mathematics-computing-2d-coordinates-of-3d-points

Bresenham's line algorithm.
https://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm

Boshart's Compter Graphics. This one is in C++;
http://mboshart.dyndns.org/~mboshart/4750programs.html

Microsoft Docs for Xna:
https://docs.microsoft.com/en-us/xamarin/graphics-games/monogame/3d/part2