A sandbag falls from a hot air balloon that is rising with a constant velocity of 15m.s 1)What is the acceleration of the bag the moment it fell from the hot air balloon? 2)What is the acceleration of the hot air balloon the moment the sandbag fell from it? 3)What is the velocity of the sandbag the moment it fell from the hot air balloon? 4)What is the height of the hot air balloon at the time the sandbag fell? 5)How high above the ground is the hot air balloon when the sandbag strikes the ground?