Here's a quick tip on how to connect objects to each other for physics simulation.
Daan Miles writes:
When I started using Blender for animations I had a problem with connecting objects because I used parenting for that. But in animations that doesn't work as I expected, so, I decided to make this video to help anyone who is having hard time with this. It is simple and easy to understand and best of all it is 1 minute long.
https://youtu.be/6chpwYE5o_I