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  2. Two-second rule - Wikipedia

    en.wikipedia.org/wiki/Two-second_rule

    The red car's driver picks a tree to judge a two-second safety buffer. The two-second rule is a rule of thumb by which a driver may maintain a safe trailing distance at any speed. [1] [2] The rule is that a driver should ideally stay at least two seconds behind any vehicle that is directly in front of his or her vehicle. It is intended for ...

  3. Following distance - Wikipedia

    en.wikipedia.org/wiki/Following_distance

    For heavy duty commercial vehicles it is recommended 4-6 seconds following distance for speeds under 30 mi/h (48 km/h), and 6-8 seconds following distance for speeds over 30 mi/h (48 km/h). [9] Rear-end collisions are the number one type of traffic collisions .

  4. Assured clear distance ahead - Wikipedia

    en.wikipedia.org/wiki/Assured_Clear_Distance_Ahead

    The rule is the specific spatial case of the common law basic speed rule, [13] and an application of volenti non fit injuria. The two-second rule may be the limiting factor governing the ACDA, when the speed of forward traffic is what limits the basic safe speed, and a primary hazard of collision could result from following any closer. [2] [3]

  5. Play clock - Wikipedia

    en.wikipedia.org/wiki/Play_clock

    A play clock, also called a delay-of-game timer, is a countdown clock intended to speed up the pace of the game in gridiron football.The offensive team must put the ball in play by either snapping the ball during a scrimmage down or kicking the ball during a free kick down before the time expires, or else they will be assessed a 5-yard delay of game (American football) or time count violation ...

  6. Clock management - Wikipedia

    en.wikipedia.org/wiki/Clock_management

    10 seconds will be taken off the clock, and the clock started when the ball is spotted, if the offense, after the 2-minute warning of either half, fouls or commits certain other acts that cause the clock to stop (including an injury when the offense is out of timeouts, except under certain circumstances), unless the clock will stop anyway for a ...

  7. Trent Tucker Rule - Wikipedia

    en.wikipedia.org/wiki/Trent_Tucker_Rule

    The Trent Tucker Rule is a basketball rule that disallows any regular shot to be taken on the court if the ball is put into play with under 0.3 seconds left in game or shot clock. The rule was adopted in the 1990–91 NBA season and named after New York Knicks player Trent Tucker , and officially adopted in FIBA play starting in 2010.

  8. Three seconds rule - Wikipedia

    en.wikipedia.org/wiki/Three_seconds_rule

    The three second area is depicted here as a darker shaded zone at either end of the court.. The three seconds rule (also referred to as the three-second rule or three in the key, often termed as lane violation) requires that in basketball, a player shall not remain in their opponent’s foul lane for more than three consecutive seconds while that player's team is in control of a live ball in ...

  9. Five-second rule - Wikipedia

    en.wikipedia.org/wiki/Five-second_rule

    Strawberries dropped on the ground. The five-second rule suggests that if they are picked up within five seconds, it is safe to eat them without rewashing.. The five-second rule, or sometimes the three-second rule, is a food hygiene urban legend that states a defined time window after which it is not safe to eat food (or sometimes to use cutlery) after it has been dropped on the floor or on ...