What is the nature of horizontal velocity in projectile motion?

In projectile motion, the horizontal component of velocity is constant throughout the flight of the projectile. This means that, while the projectile moves through the air, its horizontal speed does not change. This is because, assuming there is no air resistance acting on the projectile, there are no horizontal forces acting on it to cause any acceleration or deceleration in that direction.

The vertical motion, influenced by gravity, has constant acceleration while the horizontal motion remains steady. Therefore, the horizontal velocity remains unchanged until the projectile lands or encounters another force. Understanding this principle is essential when analyzing the trajectory of a projectile, as it helps differentiate between the effects of horizontal and vertical motion.

The other options suggest varying horizontal velocity or dismissing it as negligible, which contradicts the fundamental concepts of projectile motion.