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

* Initial Velocity: The initial velocity is W ft/sec, which is the speed and direction of the ball at the moment it leaves the thrower's hand.

* Gravity: As the ball travels upward, gravity acts on it, causing it to slow down.

* Final Velocity: The ball will eventually reach its highest point, where its upward velocity becomes 0 ft/sec. Then, gravity will pull it back down, causing its velocity to increase in the downward direction.

To calculate the velocity of the ball at any given time after it's thrown, you would need to use the following equation:

* v = u + at

Where:

* v: Final velocity

* u: Initial velocity (W ft/sec in this case)

* a: Acceleration due to gravity (approximately -32 ft/sec²)

* t: Time elapsed since the ball was thrown

Let me know if you would like to calculate the velocity at a specific time after the ball is thrown!