SOLUTION: a train a mile and a half long takes a minute and a half to go through a tunnel a mile and a half long. how fast is it going?
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Question 348764: a train a mile and a half long takes a minute and a half to go through a tunnel a mile and a half long. how fast is it going?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
S=2(pi)rh, for h
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h = S/(2(pi)r)
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Cheers,
Stan H.
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