how can i tell if i hade collisioned with the top of An Object from its hight?

Questions & Answers
1

how can i tell if i hade collisioned with the top of An Object from its hight? and what is trigger and what is use for?

2

I’m not quite sure I understand you but if there is a collision on your object you can do a rayCast to see where that collision comes from, the top, the bottom etc.

Also you can google what a trigger is in Unity. I don’t need to explain it here.