However, the velocity of the ball will change over time due to the force of gravity. Here's why:

* Initial Velocity: The initial velocity is the velocity at the moment the ball is released, which is 16 ft/sec upwards.

* Gravity: Gravity acts on the ball, slowing it down as it travels upward. This means the velocity will decrease until it reaches its highest point.

* Zero Velocity: At the highest point, the ball momentarily has a velocity of 0 ft/sec.

* Falling: After reaching the highest point, gravity pulls the ball back down, causing its velocity to increase in the downward direction.

So, while the initial velocity is 16 ft/sec upward, the velocity of the ball will change throughout its flight.