For most natural phenomena, physics has an explanation for why such an event would happen. Specifically, physics uses the concept of momentum to explain many occurrences.
Instances that relate to momentum happen all of the time in everyday life. They are especially common in sports.
As the boy accelerates the ball from rest to a certain speed, he is applying a force to the ball. He is also changing the momentum of the ball which is defined as the mass of an object times its speed.
Initially, the ball has no velocity, so its momentum is zero. After the boy kicks it, the ball gains momentum and is able to move with a speed towards the goal. This change in momentum is called an impulse, which is also defined as a force applied over a period of time. The force the boy applies must have been large to allow the ball to move with a greater speed towards the goal.
Additionally, momentum can applied to the unfortunate event of a collision in football.
As the one football player runs toward the other, who is at rest, they are bound to collide. Both players have the same mass.