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March 28, 2017

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How many cars are there in a long freight train if it take the entire train 2 minutes to pass a station as it travels at 40 miles/hour? Each car is 50 feet long

  • science - ,

    40 miles/hr = 40*5280/60 = 3520 ft/min = 70.4 cars/min

    140.8 cars pass in two minutes.

  • science - ,

    As the train is travelling at 40 Miles per hour, in two minutes it will travel:

    40 / 60 * 2 = 1.333 Miles.

    There are 5280 feet in one mile, so that would make the train:

    5280 * 1.334 = 7040 feet long

    The cars are 50 feet long each, so that would make the train have:

    7040 / 50 = 140.8 Cars Long.

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