* Gravity's Constant Pull: The primary force acting on the stone is gravity. This force is constant, meaning it exerts the same pull on the stone throughout its descent.
* Increasing Velocity: As the stone falls, gravity continuously accelerates it. This means the stone's speed increases steadily over time.
* Uniform Speed vs. Nonuniform Speed: Uniform speed means the object is moving at a constant rate. Since the stone's speed is changing, it's not uniform.
In simpler terms: The stone starts slow, but gets faster and faster as it falls.