Driving to Dallas

infinitely fast

Sixty miles an hour.

markr is quite close to the correct answer

Let's say the destination is 200 miles away.If you want to average 40mph you then take 5 hours.If after 100 miles at 20mph you have taken 5 hours you have no time left for the other 100 miles so the last 100 miles has to be instantaeneous.

One of the things that people find difficult is that you have not specified the distance, but in fact the answer is the same, whatever the distance. The answer is that there is no answer - there is no speed you can drive at that will make your average speed 40 miles per hour. The reason is that to make your average speed for the whole journey 40 miles per hour, you need to be at your destination NOW, and no speed will allow you to achieve this.

How does this come about? Well, suppose you started out at 2 o'clock, and your destination is exactly 40 miles away. For your average speed to be 40 miles per hour, you need to arrive at 3 o'clock. But you drove the first half of the journey, 20 miles in this case, at 20 miles per hour. Which has taken you an hour. So it is now 3 o'clock, and you have only covered half the distance. There is no speed that you can drive for the second half of the journey that will make the average speed 40 miles per hour, since you need to be at your destination at this moment. And this applies no matter what the distance of the journey. If you prefer, you can change everything to kilometres per hour, instead of miles per hour.

There is no way you can drive to Dallas without hitting traffic.

Feminine wisdom beats masculine logic every day of the week.

Not to mention the logic of wanting to drive to Dallas in the first place.

Come to think of it ...I don't think I've ever driven to Dallas. I have driven from Dallas, having landed at the DFW airport. Just put it all behind me. Fort Worth and the country beyond is more fun than Big D anyway. I spent two weeks in Dallas one week-end.

Been there, done that. I would not drive to Dallas again if my life depended on it. Case closed!

I actually spent time in Dallas for business for a while. I had fun when friends were in town. Some of the museums were nice as well. Actually, I recently found a good news/info blog for Dallas - Webpage Title.

But you're right about traffic. I always remember traffic around the DFW/Dallas area.

My husband and I drove to Dallas just last weekend in a driving rain and hail storm in a rental car whose windshield wipers didn't work properly. Its harder to decide what was most terrifying: the storm, the faulty wipers, the people so terrified they were driving at 5 mph and those who didn't seem to notice it was raining and were going their usual 80 or 90 mph. Then we spent three fascinating - not - hours at Love Field waiting for our plane to get around all the storms to get there from Houston.

Now none of this was Dallas's fault of course. But it sure illustrated why I don't want to drive there.

Did you get to meet Joanie?

I don't know. I think I met everybody at Love Field that day.

I'm just back from the pub Foxy but I've enough sense to resist that one.

LOL. Well that's the name of the airport.