set this up as a geometric series and then just apply the sum formula.
a = 2
r = 0.9
allow for round trips up and down
When “superballs” sprang upon the scene in the 1960’s, kids across the United States were amazed that these hard rubber balls could bounce to 90% of the height from which they were dropped. If a superball is dropped from a height of 2 m, how far does it travel by the time it hits the ground floor for the tenth time?
2 answers
38
1 answer