Release the objects used in the experiment through the signals at different height stages. Then save time and distance values to fall by 5 times and repeats all the averages.
Releasing material used in the experiment through sensors at different heights. Save the distance and time in the fall. Repeat five times by a total and average.
Let the object used in the experiment through the detector at different height. Record the distance and time of falling by repeat all 5 times and average.