Projectile Motion:
* Gravity: The only force acting on a projectile after launch is gravity, which constantly pulls it downwards.
* Vertical Velocity: As the projectile travels upwards, gravity slows it down. At the highest point, the upward velocity is completely canceled out by gravity.
* Instantaneous Stop: For a brief moment, the projectile momentarily stops moving upwards before it starts falling back down. This is why the vertical velocity is zero at the top.
Important Note: While the vertical velocity is zero, the projectile still has horizontal velocity. This is why it continues moving forward even though its vertical motion has stopped.
