What is the base unit for speed in the SI system?

The base unit for speed in the SI (International System of Units) system is the metre/second. This unit is derived from the two fundamental SI units: the metre, which is used to measure distance, and the second, which is used to measure time. Speed is defined as the distance traveled per unit of time, and using metres and seconds provides a consistent and universally accepted standard within the framework of SI units.

While other options involve different time intervals (like minute, hour, or 24 hours), they are not the standard units of measurement for scientific calculations. Metres per second allows for greater precision and is the most commonly used unit for speed in scientific contexts as it aligns with other measurements and calculations encountered in physics and engineering. This unit facilitates clear communication and accurate calculations in various scientific disciplines, making it the ideal choice for representing speed.