ive been messing about with trying to add a gravity effect to an object for hours and have pretty much given up.

what im trying to do is give an object, whether on trigger or not, a gravity or freefall effect similar to the in game mini game where the cars are falling as you run up the street.

even after watching a handful of tutorials for the full version of unity, it doesnt really seem to apply to the in game editor.

any help would be great, thanks in advance