Average Speed

Average speed tells you how fast something moves over the whole trip, not just at one instant. It works by taking the total distance traveled and dividing it by the total time taken, so the result shows the overall rate of motion across the journey. This is useful when speed changes along the way, because it gives one single number that summarizes the trip.

Use this when solving travel problems involving cars, bikes, runners, trains, or any moving object over a known distance and time. It is especially helpful when you need the overall speed for an entire journey rather than the speed at a specific moment.

• Using the distance in the wrong unit for the time given
• Forgetting that average speed uses total distance and total time, not a single part of the trip
• Dividing time by distance instead of distance by time