* Gravity's Pull: Gravity constantly pulls objects towards the center of the Earth. When you throw a ball upwards, gravity acts in the opposite direction of its motion.
* Deceleration: This opposing force causes the ball to slow down, or decelerate.
* Energy Conversion: As the ball travels upwards, its kinetic energy (energy of motion) is converted into potential energy (energy stored due to its position). This conversion results in a decrease in speed.
* Peak and Fall: At the peak of its trajectory, the ball momentarily stops moving upwards. At this point, all its kinetic energy has been converted into potential energy. Then, gravity pulls it back down, increasing its speed as it falls.
In summary: The speed of a ball thrown against gravity decreases because gravity acts as a force opposing its upward motion, causing it to decelerate until it reaches its peak, and then accelerates it downwards.
