* Gravity's Pull: Earth exerts a constant downward force on all objects, including the ball. This force is called gravity.
* Opposing Motion: When you throw the ball upwards, its initial upward motion is opposed by gravity's downward pull.
* Deceleration: This opposition causes the ball to slow down (decelerate) as it travels upwards.
* Zero Velocity: Eventually, the ball's upward velocity reaches zero at its highest point. For a brief moment, it stops before gravity pulls it back down.
* Acceleration Downward: Once the ball starts falling, gravity continues to act on it, causing it to accelerate downwards, increasing its speed as it falls.
In summary, the speed of a ball thrown upwards decreases due to the constant force of gravity working against its initial upward motion.
