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The bouncing ball is a virtual device used in motion picture films and video recordings to visually indicate the rhythm of a song, helping audiences to sing along with live or prerecorded music. As the song's lyrics are displayed on the screen in a lower third of projected or character-generated text, an animated ball bounces across the top of ...
The bounce of an oval-shaped ball (such as those used in gridiron football or rugby football) is in general much less predictable than the bounce of a spherical ball. Depending on the ball's alignment at impact, the normal force can act ahead or behind the centre of mass of the ball, and friction from the ground will depend on the alignment of ...
In bounce juggling, a form of tossing, silicone or rubber balls are allowed to bounce off a hard surface, typically the floor, before catching again. There are a few distinct tricks with bouncing balls , mixing up different rhythms, speeds and types of throws, but most popular is numbers bouncing.
A bouncing ball captured with a stroboscopic flash at 25 images per second. Note that the ball becomes significantly non-spherical after each bounce, especially after the first. That, along with spin and air-resistance, causes the curve swept out to deviate slightly from the expected perfect parabola.
A superball or power ball is a bouncy ball composed of a type of synthetic rubber (originally a hard elastomer polybutadiene alloy named Zectron) invented in 1964, which has a higher coefficient of restitution (0.92) than older balls such as the Spaldeen so that when dropped from a moderate height onto a level hard surface, it will bounce nearly all the way back up.
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The COR is a property of a pair of objects in a collision, not a single object. If a given object collides with two different objects, each collision has its own COR. When a single object is described as having a given coefficient of restitution, as if it were an intrinsic property without reference to a second object, some assumptions have been made – for example that the collision is with ...
Wallball is a team sport played between a various number of players per team in which players hit a bouncy ball against a wall, using their hands. The game requires the ball to be hit to the floor before hitting the wall, but in other respects is similar to squash. One player on one team may bounce the ball against the wall so a player only on ...