The Cost of Fuel Used in Propelling a Dirigible Varies

question 99

Essay

The cost of fuel used in propelling a dirigible varies as the square of its speed and is $100/hour when the speed is 100 miles/hour. Other expenses amount to $200/hour. Find the most economical speed for a voyage of 1,400 miles.

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Definitions:

Note Payable

A written promise to pay a specified amount of money, usually including interest, by a certain date.

Note Payable

A written promise to pay a specific sum of money on a certain date, or on demand, to the holder of the note, which can be short-term or long-term.