High Quality Content by WIKIPEDIA articles! Racetrack is a paper and pencil game of unknown origins, played by two or more players. It is also known under names such as Vector formula, Vector rally, Vector race, Graph racers, PolyRace, Paper and pencil racing, or the Graph paper race game. Racetrack is played on a squared sheet of paper ("quad pad", e.g. Letter preprinted with a 1/4" square grid, or A4 with a 5 mm square grid). The game simulates a car race. The rules for moving represent a car with a certain inertia and physical limits on traction. Hence, the cars will move on pleasing "racing lines" around the track, very reminiscent of how real racing cars move. As one must e.g. slow down before a dangerous bend in the track, the game requires some foresight and planning for successful play. The game is popular as an educational tool teaching vectors.

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