* Independence of Motion: In projectile motion, we assume no air resistance. This means the horizontal and vertical motions are independent of each other. Gravity only acts vertically, and there's no force acting horizontally.
* Constant Horizontal Velocity: As a result, the horizontal velocity remains constant throughout the projectile's flight. It doesn't matter if the projectile is going up, down, or at the peak of its trajectory.
Important Note: This is true only in ideal projectile motion where air resistance is ignored. In reality, air resistance can affect both the horizontal and vertical components of velocity.
