physics of volleyball

2nd law

example: When a player spikes the ball

third law

example: Is when the ball hits the players arm and the player creating a bump would be an action and the ball going up would be the reaction.

newtons laws

definitions

1st law: Body in motion stays in motion or rest unless its acted a upon.

2nd law, The acceleration of an object is directly proportional to the Force and inversely proportional to the mass of the object or F=ma

3rd law-For every reaction there is an action

work

1st law

example: The ball will keep falling unless someone acts upon it (passing, set or hit).

When someone passes the ball moves in the direction that the force has been applied and the ball moves when the player comes in contact with the player this is called work. Whenever a force causes displacement to an object it is called work. The ball is constantly being displaced; therefore, work is constantly being done. The equation that defines work is: W=Fd

Total work done to accelerate the volleyball from rest to speed is equal to the amount of kinetic energy it undergoes

serving

basics of volleyball

potential and kinetic energy

top-spin serve

1) Top-spin serve:the server creates a downward force on the ball bay snapping their wrist over the top.

There are 6 players on then court and on the side of the court.

Kinetic energy is defined with the equation K=1/2 mv^2

potiontal energy eqution is PE=mgh

A top spin requires the player to create a downward force on the ball by snapping their wrist on the top of the ball. Snapping your wrist on top of the ball helps to assist gravity and allows the ball to travel downward. To make the serve even harder for your opponent to pass you can perform a jump-spin serve witch allows the player to collect more kinetic energy and transfer it into potential energy, creating more power.

examples

In volleyball served,passed,served, however, moves in two dimensions( both up and forward).

that is influenced by gravity and horizontal motion that is known as projectile motion.

A ball being held in the air ready to be served has more potential energy than a ball being held at the waist

when the player approaches to hit the volleyball the player has kinetic energy( energy of motion) that will transfer it to potential

The Magnus effect

definition: The force exerted on a rapidly spinning cylinder or sphere moving through air or another fluid in a direction at an angle to the axis of spin. This force is responsible for the swerving of balls when hit or thrown with spin.

Making the ball go further explained by the Magnus effect. when the ball heads to top spin while moving in the opposing direction of the airflow, the bottom is spinning in the direction of the airflow. that causes the net force on top of the ball to be higher then the netforce on the bottom

example:

Bernoulli's principle

definition: An increase in the velocity results in a decrease in pressure.

Having a larger net force on the top of the ball, Bernulli's principle states that when air velocity decreases, air pressure increases so the net force will "pull" the ball downward, causing it to drop faster.

projectile motion

gravity:

When a volleyball is being set,passed,or serve it can only move in 2 dimensions, up and froward. witch moves along a curve path because of gravity. without air resistance, the volleyball would travel along the parabola but since their is air resistance, the volleyball travels along a shorter path

Everything that goes up must come down. the force that keeps players feet on the floor and the fore that makes the ball hit the ground.

acceleration

definition

the increase in rate or speed of something.

In this case you or your opponent serving over the net and when it goes over falling toward the ground. Gravity starts to make the ball to accelerate or if you gently pass the ball the opponent is able to send back a spike witch accelerates.

displacement

definition: Is how far out place an object is from its displacement

Equation used for displacement d=d2-d1 that is the total movement between positions

For this will be used for the players, they will not always start on their set position and have to move to that place. Meaning Dis the total movements between the positions, d1 would be the first position and the second would be d2.

physics in volleyball

5th nellany aviles