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 Originally Posted by Poopadoop
right foot is gas or velocirator or whatever people call it here.
It's definitely controlling the angular acceleration of the engine, which is equivalent to controlling the linear acceleration of the car, given the drive train is not switching gears. It increases the fuel-air flow into the cylinders (and some other things to facilitate this), which increases the force delivered per engine cycle, which increases the acceleration, 'cause F = ma.
It can seem like you're controlling the velocity of the car with that pedal, because it's easy to forget that the wind resistance accelerating your car in the opposite direction increases with the square of velocity. When you increase your forward acceleration, the backward acceleration increases, too, so you reach a "terminal velocity" rather than keep increasing in velocity.
What it's called may not be relevant to the physics, though.
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