Hi. Me and my friends have been debating a question for years. If you throw an object into the air does it stop for any period of time? My reasoning has been that it doesn't. Of course it stops when it stops moving upward, before moving downward, but it does so for 0 seconds. At the exact moment the upward force is gone and the object "stops", gravity starts pulling the object down. If it would stop for any period of time in mid air (i.e. longer than 0 sec.) it would be in zero gravity. Can anyone clear this up? Thanks, R.