* Vertical Velocity at Maximum Height: At the peak of its trajectory, a projectile's vertical velocity is zero. This is because gravity has momentarily brought its upward motion to a stop before it starts falling back down.
* Horizontal Velocity: The horizontal velocity of a projectile remains constant throughout its flight, assuming negligible air resistance. This is because no force acts on the projectile in the horizontal direction.
Therefore, the total velocity at maximum height is simply the horizontal component of the initial velocity.
