http://www.youtube.com/watch?v=DGTe5T4LIZY
http://www.youtube.com/watch?v=O5vvSJjqTOU
http://www.youtube.com/watch?v=Vx6he1pDtes
http://www.youtube.com/watch?v=HGuIFPxuwrU
In the second case the resultant force is zero and the parachutist moves with a constant speed.
If the resultant force were zero at the highest point, the ball would stay there!!
The resultant force is upwards, for almost all of the time that the ball is in contact with the table.