Question

Allow a ball to simple fall straight down. What is the change in velocity each second on the way down?

Answer 1

Um, it has to do something with the speed of acceleration. Basically, idk. Sorry

Answer 2

The acceleration due to gravity is 9.81 m/s^2 = (9.81m/s)/s
That is, the velocity grows by 9.81 m/s every second