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Question
A train 1000m long travels through a 3km tunnel. If 30 seconds elaspe from the time the last carriage enters the tunnel until the engine emerges from the other end, find the speed of the train in km/h
1000m = 1km
S = 3/(30/3600)
S = 3/(1/120)
S = 360km/h
that was what i got. you can also check with answers.yahoo.com
in our case, since time elapses since the end of the train until the engine emerges instead of the other way around, i don't think the length of the train really matters.
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Answers by Expert:
Sherman D.
Expertise
I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.
Experience
Mathematics, Recipes, History, and Games.
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High School graduated. I graduated with honors, and i was in Beta Club for a year and a half.
Awards and Honors
Principle's list and A and B honor roll in high school only.
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