Rubber Tennis Ball

1. 5 seconds, no force applied, 7 bounces 
2. 6.6 seconds, 25% force applied, 8 bounces
3. 7.1 seconds, 50% force applied, 10 bounces
4. 7.8 seconds, 75% force applied, 11 bounces

Plastic Soccer Ball

1. 9 seconds, no force applied, 14 bounces
2. 11 seconds, 25% force applied, 15 bounces
3. 10.6 seconds, 50% force applied, 15 bounces
4. 10.9 seconds, 75% force applied, 16 bounces

Tennis Ball

1. 3.1 seconds, no force applied, 5 bounces
2. 4.2 seconds, 25% force applied, 6 bounces
3. 4.5 seconds, 50 % force applied, 7 bounces
4. 4.6 seconds, 75% force applied, 8 bounces