Extract from the basic physics tutorial:
or example, if you use Set Position to move an object to the other side of the layout instantly, it has effectively teleported. That's not a realistic physical phenomenon, so the result may be unrealistic as well.
Event2 and event6 you teleport the box.
Kyatric - I know all this, and I also know, that Tom and Ashley have loads to do...but if you look around in the board and if you realy tweak the physics objects you will find quite a few things that can allways be blamed on the interaction betweent different behaviours, BUT at some point in time you come to the conclusion, that a commercial product should have either a full working engine, or claim on the start page in flashing letters, that some features can not be used with others.....
Sorry, for this long thought....
And most of the time, the "unrealistic" things are to work around other stuff that does not work (as expected)