Here are two tiny movies of our cat that I've found on the computer. I supposed my sister took them... look at them and you'll understand ^^ #1 - #2. She's called Zoé.
Awesome ^^ Anyway, this mechanics problem looks simple: you just have to calculate the speed of the object from the work of the gravity, and then to solve the differential equation in order to know what the maximum x is... But no one cares