Final answer:
One possible unit of speed is all of the above: miles per hour, meters per second, and yards per century. The choice of unit depends on the situation and the preferred measurement system.
Step-by-step explanation:
One possible unit of speed is all of the above - miles per hour, meters per second, and yards per century. The choice of unit depends on the situation and the preferred measurement system.
For example, in everyday life, people commonly use miles per hour to measure the speed of cars, while in scientific contexts like physics, meters per second is often used. The choice of unit is important for ensuring consistency and accuracy in measurements.
Learn more about units of speed