Toss a ball upward. What is the change in speed each second on the way up? Change in speed on the way down?

Answer 1

The change in speed of the ball each second on the way up is negative, because gravity works against it to slow it down. The change in speed on the way down is positive, because gravity works with the ball to speed it up.

Answer 2

The acceleration, or change in velocity, on the way up is 9.8 m/s (or 32 f/s) downward every second. The acceleration on the way down is the same - 9.8 m/s downward every second. Which means that on the way up, the speed DECREASES by 9.8 m/s every second until it stops, while on the way down the speed INCREASES at the same rate.

Answer 3

On it's way down, it's 32 feet per second/per second. That means 32 feet per second in the first second, 64 feet per second in the second second, 96 feet per second in the third second, etc.