The pounds per square inch, or PSI, of a soccer ball can affect a lot of things but it does not give an advantage to any team over another since they use the same ball. There are various sizes of balls, labeled “1” through “5”, five being the professional-sized regulation ball. However, the air pressure can affect how the ball performs. When the ball is under-deflated it makes it harder to pass down the field and when it is too inflated it makes the ball harder to handle. An over-inflated ball also bounces more, which makes it harder to stop the ball and to control it. The ball will also be very ‘touchy’ when a person kick the ball it could fly high and far. For …show more content…
However, there is no regulation measurement regarding the circumference of a soccer ball. The typical radius of a soccer ball is 8.65 inches and the diameter of a typical is 17.3 inches. All of these measurements are important to find the weight of the soccer ball, and the ball’s mass. The equation to find mass is Density=Mass/Volume, to find volume for a sphere the equation is Volume=4/3πr^3. The average weight of a correctly-inflated soccer ball is 420-450 grams, or 0.925942 0.99208 pounds. The weight of the ball is important because it can affect the speed the ball falls due to gravity. Gravity's force is 9.81 m/s2. The ball’s velocity, or how fast it is going, is affected by where it is and how a force is acting upon it. The velocity of it going down is more because gravity is in the favor of falling were as the. Due to the force of gravity, the ball is constantly falling at a rate of 9.81