The impact of an event happening at a distance takes some time to reach the observer. This is the lag time and, as the distance increases, the lag time increases. The increase depends on the velocity of transmission of the information.
For example, the lag time for a flash of lightning depends on the speed of light; the lag time for the clap of thunder depends on the speed of sound; the lag time for the person that the lightning bolt missed depends on how fast they can run to you.
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If the average speed of the car....Here is an unfinished question. The total distance is average speed times time. But since average speed is gotten by dividing total distance by the time, then it's a kind of circular question.
Generally: RATE = DISTANCE / TIME -or- DISTANCE = RATE * TIME -or- TIME = DISTANCE / RATE qed
Distance = Rate x Time Rate = Distance/Time, not Time/Distance
Average speed during the time = (distance) divided by (time for that distance)
When looking at a distance vs. time graph, it shows how far an object is traveling over a certain amount of time which can be written like this: distance per time or distance/time (distance divided by time) If we then put units in for distance (let's say meters) and time (seconds) we get this: meters/seconds which is the same as the units for speed.