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rchelipilot121

Heliman

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A train traveling at 90 miles per hour takes 4 seconds to completely enter a tunnel, and 40 additional seconds to completely pass through the tunnel. How long is the train? How long is the tunnel?

[5869-3-30]

12-20-2004 Over year old.
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Drunk Monk

rrProfessor

Preston, UK

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Well for the first part, I get 0.1 miles long, or 161 meters.


Stephen

I only open my mouth to change feet.....

12-20-2004 Over year old.
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Drunk Monk

rrProfessor

Preston, UK

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and 1 mile long for the tunnel. I think....


Stephen

I only open my mouth to change feet.....

12-20-2004 Over year old.
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rchelipilot121

Heliman

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How come half the answer you gave in metric, and the other half in SAE?? You trying to confuse me??

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CACTUSJACK (passed)

Senior Heliman

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Train is 528 ft. long, tunnel is 5280 ft. long???

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12-20-2004 Over year old.
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Senior Heliman

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Change that: Tunnel is 5808 ft.

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X5X7 Animum Vestrum Negotium Agatis

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Drunk Monk

rrProfessor

Preston, UK

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LOL ok then I know there are 1610 meters in a mile so I'm guessing at 483 feet in 0.1 miles. So that would mean that the tunnel length is 1610 meters or 4830 feet


How's that?


Stephen

I only open my mouth to change feet.....

12-20-2004 Over year old.
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Colibri

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The Netherlands

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to completely pass through the tunnel
It may be a language thing but may I ask if this means the head of the train just comes out of the tunnel or does it mean the tail just leaves the tunnel?

Tim

12-20-2004 Over year old.
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rchelipilot121

Heliman

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I haven't worked this one yet. Im going by the entire train exited, since the first half was to find the length of the train. I'm too busy being kicked out of off topics.

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Colibri

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The Netherlands

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I'm too busy being kicked out of off topics.
I guess Mark is experiencing tunnel vision.

Tim

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rchelipilot121

Heliman

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5280 feet per mile
3600 seconds per hour

90 mph is 132 fps

Train is 528 feet long. Tunnel is 5280 feet long.

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Drunk Monk

rrProfessor

Preston, UK

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How many feet in a mile. I thought there were 1610 meters in a mile and 3 feet in a meter


Stephen

I only open my mouth to change feet.....

12-20-2004 Over year old.
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rchelipilot121

Heliman

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It's not exact. There are 5280 feet in a mile. There are 3 feet in a yard. A yard is not the exact same as a meter. The yard converts to .9144 meters, which means that one mile is equivilent to 1760 yards, or 1.6093 kilometers. If the rest of the world would hurry up and catch up to our system of measurement, we wouldn't have these problems.

http://convert.french-property.co.uk/

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Drunk Monk

rrProfessor

Preston, UK

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If the rest of the world would hurry up and catch up to our system of measurement, we wouldn't have these problems
yeah yeah yeah


Stephen

I only open my mouth to change feet.....

12-20-2004 Over year old.
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CACTUSJACK (passed)

Senior Heliman

State of Confusion

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44 seconds total in tunnel= 44X132=5808 ft.

.

X5X7 Animum Vestrum Negotium Agatis

12-20-2004 Over year old.
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rchelipilot121

Heliman

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44 seconds total in tunnel
Why 44? The riddle says 40.

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VinceHerman

Senior Heliman

Wadsworth, OH

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Yes, 44, the train had already been in the tunnel for 4 seconds.

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CACTUSJACK (passed)

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takes 4 seconds to completely enter a tunnel, and 40 additional seconds
I just added them up.

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X5X7 Animum Vestrum Negotium Agatis

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Kristjan

Senior Heliman

Estonia, Tallinn

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Why don`t you use International System of Units - SI?
the meter for distance,
the kilogram for mass,
the second for time,
the ampere for electric current,
the kelvin for temperature,
the mole for amount of substance, and
the candela for intensity of light.

K.

12-20-2004 Over year old.
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VinceHerman

Senior Heliman

Wadsworth, OH

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Oops, just read back and saw that I was answering the wrong part. I guess that the 4 seconds does not come in to the calculation.

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