kiirenduses

Kiirendus is a term that can refer to several concepts, primarily in the context of physics and mechanics. In its most common scientific usage, it describes the rate at which an object's velocity changes over time. Velocity itself is a vector quantity, meaning it has both magnitude (speed) and direction. Therefore, acceleration can occur if an object speeds up, slows down, or changes direction, or any combination of these. The standard unit for acceleration in the International System of Units (SI) is meters per second squared (m/s²).

In a broader, non-technical sense, "kiirendus" can also simply mean an increase in speed or rate. For example, one might speak of the economic "kiirendus" of a country, referring to its accelerated growth. In engineering, it is a fundamental concept used in the design of vehicles, machinery, and countless other systems where motion is a factor. Understanding acceleration is crucial for predicting how objects will move and interact.