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Old 10-13-06, 08:07 AM   #1
Tom Stormcrowe
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I need a Foo Favor! Class Project!

First, I'm going to be out of town over the weekend, so if someone could bump this from time to time, I'd appreciate it a lot!

OK, to my project.......
I need the answer to this question, your age range(18-30, 31-45, 46 and up), and what method you used you used arrived at the answer!

Send your response to me through the PM's if you please so that I get your response, uninfluenced by others.

Here is the problem:
Two trains are 50 miles apart. At 2PM, one Saturday Afternoon, they start towards each other simultaneously, from their respective stations and will meet in the middle, at the 25 mile point. This will take 1 hr because they are traveling at 25 mph. Just as Train A pulls out of the station, a bird flies up in front of the first train and flies ahead until it meets the second train, where it turns around and flies back toward the first train. It reaches the first train and turns around and flies back to the second train and turns around....and so on until the trains meet in the middle. How many miles does the bird fly?

I'll tell you all what it's about next week!
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Old 10-13-06, 08:12 AM   #2
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okay this just made my brain hurt!!!
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Old 10-13-06, 08:14 AM   #3
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We can't tell you the answer until you tell us how quickly the bird was flying. I'm in the first age group, and I used my brain.
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Old 10-13-06, 08:17 AM   #4
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I am 42 year old to answer your question, and I arrived at this answer using the date my parents told me I was born. Dang, I hope they weren't lying to me. Although you did not ask, here is my answer to your "problem". I tried to find a bird common to most of the United States and decided on the mourning dove. It's flight speed averages around 35 mph according to my very limited google research. Assuimg the bird flies non stop for 1 hour it travels around 35 miles.
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Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
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Old 10-13-06, 08:19 AM   #5
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But mourning doves are non-migratory!
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Old 10-13-06, 08:21 AM   #6
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But mourning doves are non-migratory!
Then how did they carry the coconuts?
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Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
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Old 10-13-06, 08:23 AM   #7
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They could grip it by the husk!
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Old 10-13-06, 08:27 AM   #8
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Is it an African or European swallow?
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Old 10-13-06, 08:55 AM   #9
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purple
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Old 10-13-06, 09:38 AM   #10
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I don't like your age categories...I am now officially in the 31-45 range .

This is one of those crappy questions that tries to gain perspective into how people approach problem solving. I say crappy because I am an engineer that also can see the big picture so I can never solve these....I try to lay out logical thought (engineer), then get stuck and look for the easy solution (big picture)....

Without offering a solution, if there is a real one with actual miles, I have a feeeling the birds flight speed is not important/not needed. The trick is in the fact that there are two trains approaching each other at a constant rate....

EDIT: Disregarding any play on words or commmon sense "catch" that I missed in the original posting....
When we're done with this one I have one about a bike that fools every engineer, and cyclist, I have ever met. Physics be damned.
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Old 10-13-06, 09:42 AM   #11
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Quote:
Originally Posted by Psimet2001
I don't like your age categories...I am now officially in the 31-45 range .

This is one of those crappy questions that tries to gain perspective into how people approach problem solving. I say crappy because I am an engineer that also can see the big picture so I can never solve these....I try to lay out logical thought (engineer), then get stuck and look for the easy solution (big picture)....

Without offering a solution, if there is a real one with actual miles, I have a feeeling the birds flight speed is not important/not needed. The trick is in the fact that there are two trains approaching each other at a constant rate....
Flight speed is of the utmost importance. The trains will meet in one hour. That is a constant. The bird has one hour to fly, either in a straight line or between moving points, a bird that flies 15 miles an hour will fly 15 miles. A bird that flies 65 miles per hour will fly 65 miles.
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Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
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Old 10-13-06, 09:46 AM   #12
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As the crowe flies?
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Old 10-13-06, 09:54 AM   #13
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Quote:
Originally Posted by Tom Stormcrowe
First, I'm going to be out of town over the weekend, so if someone could bump this from time to time, I'd appreciate it a lot!

OK, to my project.......
I need the answer to this question, your age range(18-30, 31-45, 46 and up), and what method you used you used arrived at the answer!

Send your response to me through the PM's if you please so that I get your response, uninfluenced by others.

Here is the problem:
Two trains are 50 miles apart. At 2PM, one Saturday Afternoon, they start towards each other simultaneously, from their respective stations and will meet in the middle, at the 25 mile point. This will take 1 hr because they are traveling at 25 mph. Just as Train A pulls out of the station, a bird flies up in front of the first train and flies ahead until it meets the second train, where it turns around and flies back toward the first train. It reaches the first train and turns around and flies back to the second train and turns around....and so on until the trains meet in the middle. How many miles does the bird fly?

I'll tell you all what it's about next week!
I'm in the 31-45 age group. But this type of word problem thingie is one of my most unfavorite things in the entire world. Sorry..but I won't even attempt to answer this.
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Old 10-13-06, 09:58 AM   #14
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I think the answer to the problem depends upon whether the trains are in the northern or southern hemisphere. And also whether the bird is indigenous to that area.... And then the orientation of the track is critical as well. Especially in regards to its orientation parallel to or perpendicular to the equator. Then you have to take the sin/cosine of the angle between the track and the equator and multiply that by the raw speed of the bird in order to get the actual air-speed (accounting for the Earth's rotation)...
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Old 10-13-06, 10:00 AM   #15
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Age Group 41 - to feeble. Old enough to know that The bird/trains/or miles traveled are irrelevant to me. Time is too important to think of birds and trains.

Now if you want my age group to answer a true question ask this one.

Your spouse has three chores for you to complete on a beautiful sunny Saturday. Each chore will take one hour to complete. Your spouse will be gone for six hours shopping. What speed do you have to average to complete fifty miles on your bike, shower and complete all the chores before the spouse returns.

Now that is a practical question I would spend my valuable time to solve.
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Old 10-13-06, 10:01 AM   #16
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Quote:
Originally Posted by DannoXYZ
I think the answer to the problem depends upon whether the trains are in the northern or southern hemisphere. And also whether the bird is indigenous to that area.... And then the orientation of the track is critical as well. Especially in regards to its orientation parallel to or perpendicular to the equator. Then you have to take the sin/cosine of the angle between the track and the equator and multiply that by the raw speed of the bird in order to get the actual air-speed (accounting for the Earth's rotation)...
I had an egg sandwich for breakfast
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Quote:
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Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
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Old 10-13-06, 10:09 AM   #17
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While we're on the subject of class project, I have one of my own.

Please PM me your full name, social security number, home address, home telephone number, bank account number, credit card numbers (and expiration dates, ccv numbers), and a frontal photo of your face infront of a blue background.

I'd be eternally grateful if you folks could help me out. I promise not to share this information with anyone. Selling it, on the other hand, is a different story. I mean, I plan on ripping you off. I MEAN, I'M A SCAM ARTIST AND WILL DESTROY YOUR CREDIT RATING!

****!

I hate these stupid no-lieing curses...
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Old 10-13-06, 10:17 AM   #18
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Quote:
Originally Posted by jsharr
Flight speed is of the utmost importance. The trains will meet in one hour. That is a constant. The bird has one hour to fly, either in a straight line or between moving points, a bird that flies 15 miles an hour will fly 15 miles. A bird that flies 65 miles per hour will fly 65 miles.
This discussion that we're now going to have is what Tom is interested in more than any answer...

True...a bird flying at 15 mph will cover 15 miles during an hour....but keep in mind that the trains are closing at the exact same speed over a distance of 50 miles...in one hour. The slowest the bird could go is 25mph, and the gap between the trains is closing at a rate of 50mph. Each train covers the same amount of ground during the flight of the bird from one train to the other....meaning the distance the bird can fly back to the first train once it has reached the second train is exactly half the distance it flew during the first leg, and so on and so forth....(EDIT:...not really...I guess it's still a function of the speed of the bird....I'm leaving now....)

...I still haven't got an answer, but does anyone see where I am going.....It's a function.....but odds are it's pathetically simple and we're all missing the obvious answer....
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Old 10-13-06, 10:23 AM   #19
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I"m in the (first part) of the 31-45 age range, and I used my birth certificate to arrive at my answer.

As far as the bird and the trains, there is some math behind it that probably doesn't need to consider the bird's velocity (which we must assume is constant), or the possibility that train B would probably kill the bird, plowing into it at 25mph+whatever speed the bird is flying.


BUT, seeing as these types of brain teasers tend to have a simple answer, I'm going to say the bird flies a total of 50 miles.
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Old 10-13-06, 10:26 AM   #20
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Quote:
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<snip>BUT, seeing as these types of brain teasers tend to have a simple answer, I'm going to say the bird flies a total of 50 miles.
That was my first reaction as well.


...my second was 25 miles.




...in school I used to use "-3" a lot as an answer. Will that work?
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Old 10-13-06, 10:27 AM   #21
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Quote:
Originally Posted by Tom Stormcrowe
First, I'm going to be out of town over the weekend, so if someone could bump this from time to time, I'd appreciate it a lot!

OK, to my project.......
I need the answer to this question, your age range(18-30, 31-45, 46 and up), and what method you used you used arrived at the answer!

Send your response to me through the PM's if you please so that I get your response, uninfluenced by others.

Here is the problem:
Two trains are 50 miles apart. At 2PM, one Saturday Afternoon, they start towards each other simultaneously, from their respective stations and will meet in the middle, at the 25 mile point. This will take 1 hr because they are traveling at 25 mph. Just as Train A pulls out of the station, a bird flies up in front of the first train and flies ahead until it meets the second train, where it turns around and flies back toward the first train. It reaches the first train and turns around and flies back to the second train and turns around....and so on until the trains meet in the middle. How many miles does the bird fly?

I'll tell you all what it's about next week!
Sorry, additional data: Bird= 100mph
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Old 10-13-06, 10:30 AM   #22
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Quote:
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Sorry, additional data: Bird= 100mph
Oh. 100 miles. And then it will be dead. Squashed between two trains. Stupid bird.
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Old 10-13-06, 10:32 AM   #23
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Is this a rocket bird?
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Old 10-13-06, 10:38 AM   #24
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These types of problems usually have catastrophic results as the trains "meet" in the middle. Imagine what this means ... Also, my guess is that the bird dies of a massive coronary as it tries to stay ahead of the train. It almost brings tears to my eyes.
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Old 10-13-06, 10:42 AM   #25
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Quote:
Originally Posted by Tom Stormcrowe
Sorry, additional data: Bird= 100mph
Trains will be moving for 1 hour. Bird can go 100 miles per hour, subtract a bit o mileage for starting and turning, i will say 95 miles flight distance. See my original answer for my age and how I came up with it.
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Quote:
Originally Posted by colorider View Post
Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
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