SOLUTION: The separate sections of rail on a railroad track are 30 ft. long. As the train passes over the point where the sections are joined, there is an audible click. By what fraction m
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Question 280092: The separate sections of rail on a railroad track are 30 ft. long. As the train passes over the point where the sections are joined, there is an audible click. By what fraction must the number of clicks in a minute be multiplied to find the speed of the train in miles per hour? Found 2 solutions by Alan3354, josmiceli:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! The separate sections of rail on a railroad track are 30 ft. long. As the train passes over the point where the sections are joined, there is an audible click. By what fraction must the number of clicks in a minute be multiplied to find the speed of the train in miles per hour?
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1 click per second = 60 clicks per minute = 30 ft/sec
30 ft/sec = 108000 ft/hr = 20.4545... miles/hr (225/11 mph)
--> 60 clicks/min = 225/11 mph
mph = 60*11/225 = 44/15 times clicks in 1 minute =~ 3
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3 clicks/min means you're moving ~1 mph
You can put this solution on YOUR website! There are ft in a mile
You will hear clicks/mile
If the train's speed was mile/min, that is miles/hr
So, clicks/min means the train's speed is miles/hr
Therefore, x clicks/min gives the train's
speed in miles/hr
