Decreasing as it goes up, reaching zero at the highest point, and then increasing as it comes back down.
Here's why:
* Going Up: As the ball travels upward, gravity acts against its motion, slowing it down. This results in a decrease in speed until the ball momentarily stops at its highest point.
* At the Highest Point: The ball's speed is zero for a split second before it begins to fall back down.
* Coming Down: Gravity now pulls the ball back towards the Earth, causing it to accelerate and increase its speed as it falls.
Therefore, the speed of the ball changes throughout its journey, not remaining constant.
