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A comment on To Everywhere in 42 Minutes. Parent comment

Re:To Everywhere in 42 Minutes by lisper on Wednesday April 22, 2009 @07:52PM (#574803)
BTW, the math in this case is really easy. Kinetic energy is 1/2mv^2. 1000 MPH is 444m/s. So to accelerate a one metric ton vehicle to 1000 MPH requires 1/21000 444^2 = ~100MJ, which is less than the energy in one gallon of gasoline.
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Re:To Everywhere in 42 Minutes by ars on Friday April 24, 2009 @02:32AM (#577092)
Any vehicle would probably by much heavier than 1 ton. A 747 weighs about 400 metric tons. But still 400 gallons of gas (in bulk) only costs about $750 which is nothing.

Although that assumes you got perfect efficiency from it, which you won't.

I concede your point - and you should have gotten more mod points for it.

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