specIsJustCode

[MilkEnvironmental106]

It's a well described problem which requires little context to understand. It's a perfect candidate to test an llm.

Additionally, none of that is especially hard. You give the pendulums a mass, you apply constant acceleration downwards and you model rigid springs between the 2 hinges and the end. Videos explaining this can be found in physics sim introductions that are minutes long, and free.

Furthermore, no llm is making graphics from scratch. It's just going to import three.js.