Answer:
9.8
Explanation:
Falling object on earth experiences a speed of 9.8 m/s or 32.2 ft/s per second hence the acceleration due to gravity is equivalent to 9.8 m/s2 or 32.2 ft/s2.
Normally, an object going against gravity will experience a counter that is the reason why when one throws an object up it ends up falling down. This is why Newton discovered that F=mg where m is mass and g is acceleration due to gravity.