When a ball is in motion and eventually comes to a stop on the ground, several factors contribute to this phenomenon. The primary factors are gravity, friction, and air resistance.
Gravity: Gravity is the force that pulls objects toward the center of the Earth. When a ball is in the air, gravity accelerates it downward. As the ball nears the ground, the force of gravity continues to act on it, causing it to slow down until it eventually comes to rest.
Friction: Friction is the resistance that opposes motion when two surfaces are in contact. When the ball touches the ground, the interaction between the ball and the ground surface creates friction. Friction between the ball and the ground converts some of the ball's kinetic energy (motion) into heat energy, gradually slowing the ball down.
Air Resistance: Air resistance is a force that opposes the motion of objects as they move through the air. When the ball is in the air, it experiences air resistance, which acts opposite to its direction of motion. However, the effect of air resistance on the ball's motion is relatively small compared to gravity and friction. As the ball approaches the ground, air resistance becomes less significant, and its impact on the ball's motion diminishes.
Combining these factors, the ball slows down and eventually stops due to the opposing forces of gravity, friction with the ground, and to a lesser extent, air resistance. The ball's kinetic energy is gradually dissipated through these forces, leading to its eventual rest on the ground.