Average Speed
Average Speed.
A car does not always move at the same speed. On any trip its speed usually varies somewhat, so we consider its average speed.
Average speed=total distance/time interval. Average speed can be calculated easily. For example, if we drive a distance of 80 kilometers in a time of 1 hour, we say our average speed is 80 kilometers per hour. Likewise, if we travel 320 kilometers in 4 hours, Average speed=total distance covered/time interval=320/4=80.
We see that when a distance in kilometers is divided by a time in hours, the answer is in kilometers per hour.
Since average speed is the whole distance covered divided by the total time of travel, it does not indicate the different speeds and variations that many have taken place during shorter time intervals.
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7 Responses to “Average Speed”
On October 18, 2009 at 9:07 am
excellent
On October 18, 2009 at 9:39 am
Great work
On October 18, 2009 at 9:45 am
thank you raman…
On October 18, 2009 at 9:46 am
thanks chantell!
On October 18, 2009 at 10:53 am
Very informative.
On October 18, 2009 at 1:17 pm
Thanks Darla…
On November 17, 2009 at 11:13 pm
Very precise and informative, thank you for sharing your insight.
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