شتاب is a Persian word that translates to "acceleration" in English. It refers to the rate at which an object changes its velocity over time. In physics, شتاب is an important concept, as it helps to understand how quickly something is speeding up or slowing down. It is typically measured in meters per second squared (m/s²). In everyday life, شتاب can be observed in various situations, such as when a car speeds up at a traffic light or when a roller coaster descends rapidly. Understanding شتاب is essential for fields like engineering and transportation, where safety and efficiency are crucial.