Quote:
Originally Posted by Chas H
If Ah-Kay made a mistake, how did he come to the correct answer?
There is no graph of any sort to consider just the simple case posed by the OP. Averaging the speed is perfectly valid in this case.
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Best you get yourself a high school physics book.
A question of "averages" for you;
2 towns are 50 miles apart, you wish to average 50mph for a return journey.
At the start of the trip you get stuck behind a funeral procession & so maintain 25 mph all the way to the town. What speed must you come back at to average 50 mph for the whole trip there & back?
According to the above logic it would be 75mph. do you agree?
I dont.
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