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Car accelerators (off topic)
At 13:47 -0500 18/12/98, Thomas R. Holtz, Jr. wrote:
>You hold a car's accelerator constant
>to keep a constant speed.
That's actually correct terminology.
Force = mass x acceleration, right?
Well, on a car, like a plane, you four main forces: lift, gravity, drag,
Lift and gravity (with the help of the suspension) can be ignored. So all
you have is thrust and drag.
Assume a car in a vaccuum - with on board oxygen. :) Let's ignore
friction for now. If you depress the accelerator, say, 2 inches, it will
accelerate forever, continuously increasing speed (let's also ignore
If you depress the accelerator 4 inches, it will accelerate faster.
In real life, you have drag to balance thrust and drag increases with
speed. If you depress the accelerator 2 inches, the car will accelerate
until it reaches a speed at which thrust=drag. If you depress it 4 inches,
it will do the same, but the final speed will be higher than at 2 inches.
We now return you to All My Turtles.
Laurie Nyveen email@example.com
Editor, Netsurfer Digest - <http://www.netsurf.com/nsd/index.html>
DNRC Minister of Adding "ue" to Words That End in "log"
"All we are, basically, are monkeys with car keys."
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