<PRE><B>Question 488053</B>
How many cars are there in a long freight train if it takes the entire train 2 minutes to pass a station as it travels at 40 miles/hour? Each car is 50 feet long. 5280 ft = 1 mile
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40(miles/hr)(1 hr/60 min)(5280 ft/1 mi)
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= (40*1*5280)/(1*60*1)(ft/min)
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= (3520)ft/min
= (7040)ft/2min
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# of cars = 7040/50 = 140
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Cheers,
Stan H.
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