> For the complete documentation index, see [llms.txt](https://physics.ed-era.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://physics.ed-era.com/zakon-vsesvitnogo-tyazhinnya/persha-ta-druga-kosmichni-shvidkosti.md).

# Перша та друга космiчнi швидкостi