1. Horizontal Component:
* No direct influence: Gravity acts vertically downwards, and there is no horizontal component to the force of gravity.
* Constant Velocity: As a result, the horizontal velocity of a projectile remains constant throughout its flight, assuming negligible air resistance.
* Uniform Motion: This means the projectile travels equal distances in equal intervals of time in the horizontal direction.
2. Vertical Component:
* Direct influence: Gravity acts directly on the vertical component of the projectile's motion.
* Acceleration: The acceleration due to gravity (approximately 9.8 m/s²) acts downwards, constantly changing the vertical velocity of the projectile.
* Non-uniform Motion: This means the vertical velocity is not constant, and the projectile experiences changing distances traveled in equal time intervals.
To summarize:
* Horizontal: Gravity has no direct influence; constant velocity; uniform motion.
* Vertical: Gravity exerts a constant downward acceleration; changing velocity; non-uniform motion.
Here's a visual analogy: Imagine a ball rolling off a table. The ball continues moving horizontally at a constant speed (horizontal component) while simultaneously falling downwards due to gravity (vertical component).
Important Note: This description assumes a simplified scenario without air resistance. In reality, air resistance can significantly affect the horizontal component of projectile motion.