My example was correct. It is you who does not understand.
Your ball cant act as a ball, it has square colission polygones.
You move an object middle in an object and then 'on collision' with that object you want to do something. I have now idea how this can result in something 'physical'. Other then generating 'black hole forces'.
You dont move it with physics (That would be ofcourse inpossible) In reality, in a world ruled by physics, when i magicaly and instantly move a tennis ball middle into you brain, what would happen ?
Dude he didn't say your example is not correct, he said he was looking for something different. Also being a smart a$$ isn't a good way to make friends. Treat people with respect!!