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Physics of Volleyball
Transcript of Physics of Volleyball
Period: 2 Physics of Volleyball Force Momentum Newton's Three Laws F= m x a In volleyball the mass of the ball stays the same, but the acceleration of the ball varies. When force is applied, the volleyball goes in the direction the force is exerted. The mass of a volleyball can vary from .26-.28 kg Newton's Second Law Newton's Third Law "law of inertia" An object at rest will remain at rest unless acted on by an unbalanced force. "F= m x a" Acceleration is produced when a force acts on a mass. For every action there is an equal and opposite re-action. Example: Example: Example: When the ball is falling it will continue to fall until it hits the ground or is passed by another player The volleyball net will stay at rest unless it is hit by a player or ball The force the volleyball is hit with can be found Action- Serving or spiking
Reaction- ball bouncing off of the receiver's arm There are six players on one side of the court at a time. Hitting Free Body Diagram F Works Cited http://www2.hesston.edu/Physics/Volleyball/paper.htm M= m x v Definition: The quantity of motion of a moving body, measured as a product of its mass and velocity. When hitting, you want to put as much momentum as you can into the volleyball. The shorter time your hand is in contact with the ball, the greater the momentum. Your side can only hit the ball a maximum of three times when it goes over the net. The sets can be up to 25, or 15. Depending on the game type. Points are awarded to your team when the ball strikes the ground on the other team's side of the net. Volleyball was originally called mintonette. In 1900, a special ball was designed for the sport. In 1920, three hits per side and back row attack rules were instituted. In 1983, the Association of Volleyball Professionals (AVP) was formed. In 1990, the World League was created. In 1995, the sport of Volleyball was 100 years old Velocity Definition: The speed of something in a given direction Example: Used to measure how fast the player and volleyball moves. Acceleration Definition: The rate of change of velocity per unit of time Example: Used to find a players velocity that decreases and increases in a certain amount of time. Kinetic Energy Potential Energy Definition: Definition: Energy being used to carry out a task Stored energy that has the potential to transfer into kinetic energy When you approach the volleyball, your body has kinetic energy. You want to turn that into potential energy so you can jump higher in order to spike the ball. Momentum Definition: The quantity of motion of a moving body, measured as a product of its mass and velocity When hitting you want to put as much momentum into it as possible The shorter amount of time your hand is in contact with the ball, the greater the momentum. Example: http://www.east-buc.k12.ia.us/02_03/ce/tt/tt.htm air F gravity Setting You need to have extremely good control over the ball when making a set so that you can set up the attack as best as possible. Purpose set the ball up for the spike Both hands should make contact with the ball at the same time. If your hands make contact at two different times, the ball will have a slight spin since your hands forced it in two different directions. http://www.real-world-physics-problems.com/physics-of-volleyball.html http://www.topendsports.com/sport/volleyball/physics.htm