How to Create Realistic Weight and Scale Physics in Unity
In this video, I show off a script that allows an object to have accurate weight physics based off the scale of the game object; the script includes many different materials to choose from by default, though it is extremely simple to add your own materials onto it! Just remember, make sure your weight measurements are in kilograms and your scale measurement is one meter squared.
Script:
https://pastebin.com/wxQJe2xW