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Hawk-Eye is a computer vision system used to visually track the trajectory of a ball and display a profile of its statistically most likely path as a moving image. [1] It is used in more than 20 major sports, including cricket, tennis, Gaelic football, badminton, hurling, rugby union, association football and volleyball, [2]
A ball is "in" if any part of it touches the inside of a team's court or a sideline or end-line, and a strong spike may compress the ball enough when it lands that a ball which at first appears to be going out may instead be in. Players may travel well outside the court to play a ball that has gone over a sideline or end-line in the air.
Volleyball players use it for better grip of their hands. Volleyball knee pads: Volleyball knee pads, is the equipment used by volleyball players to protect their knees, when they jump high, jump sideways and fall to the ground. Volleyball leg pads: Volleyball leg pads, allows volleyball players to play safely. Basketball:
Float serves are only possible with minimal to no spin of the volleyball while it is moving in the air. [1] Unlike a topspin serve, which uses the spin of the ball to create a constant difference in pressure that drives the ball downward at a high speed, the float serve can be affected in any direction by the random forces of the air and pressure (drag, lift, drag crisis, turbulence) because ...
Volleyball offense is how a team can attempt to score a point by causing the ball to land on the opposing teams side of the court. Generally, this is done by first receiving the ball from the other side in the form of either an attack or serve, having the ball set to an attacker, and then having a player jump and attack the ball. Once the ball ...
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