# Volleyball Physics

Physics can be seen in every sport. To start off, physics can be seen in the first second of a volleyball game when the ball first rebounds off the hands of a player during the first serve of the game. Factors such as, how good a server is, where the ball is being served to, and how high the serve goes was taken into account as I did my testing of how long it took the average volleyball player to serve a ball to the center of the court. By using a stopwatch and various trials I found the average time the ball took to be 1.11 seconds from the contact of the players hand to the ground on the opposite side of the court. I also know that a volleyball court from the serving line is 30 feet on both sides so serving the ball from one side to the center of the court on the other side is roughly 45 feet from the end line. To make all my units equal I converted feet to meters and got 13.7 meters. After gathering all this info I am able to find the velocity of the ball by using the equation d=vit+1/2at^2. Since the ball is traveling horizontally I know the acceleration is zero. Because of this I can get rid of the 1/2at^2 and use the equation vi=dt to solve for velocity. Next, I add numbers and units to get (1.11s)(13.7m)= 15.2m/sec. From this I can conclude that the average speed at which a girlsâ€™ volleyball player can serve the ball is 15.2m/sec.

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