What is the speed of 20 km in 2 hours?

Calculating Average Speed: A Simple Example

Understanding how speed relates to distance and time is fundamental in many aspects of daily life, from planning a road trip to calculating the efficiency of a machine. This simple example illustrates the basic concept.

If someone travels 20 kilometers in 2 hours, their average speed is calculated by dividing the total distance by the total time. Twenty kilometers divided by two hours equals 10 kilometers per hour. This result, 10 kilometers per hour, represents the average speed throughout the entire journey. Importantly, this calculation assumes a constant speed.

Crucially, this calculation focuses on average speed. The individual's speed during the two hours could have varied. They might have driven at a higher speed for part of the trip and slower for another part. The average speed of 10 km/hr simply describes the overall rate of travel over the entire 2-hour period. This highlights the difference between instantaneous speed (the speed at a specific moment) and average speed.