when we assume you go in a stall ballistic towards mother earth initially you will have 0G - so feel like in space and start to acclerate with 9.81 m/s2 towards the ground. without air you would continue to acclerate - every second you would be 9.81 m/s faster. but in the athmosphere the air starts to be a drag when you are falling towards earth and after a time the gravity equals the drag - you do not continue to acclerate anymore and have 1G again.