The first drop makes the ball travel 16 m. Then the maximum height decreases to 16 x 0.81 And the distance traveled is twice the distance traveled. If we make a pattern, this forms a geometric progression in which the common ratio is 0.81 and the first term is 16. The sum of this series: a / (1 - r) = 16 ( 1 - 0.81) = 84 feet This is the upward height, and the ball returns every time so: Total distance = 84 x 2 = 168 feet
