Item Physics for 1.18 (v1.3) is a release file of the Minecraft resource pack Item Physics, made for Minecraft 1.18.1, 1.18. It was published on December 13, 2021 and is 0 MB in size. For the full description, screenshots and every other version, visit the Item Physics resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.