Why cars do not have linearly increasing acceleration?
There are 2 main reasons, first is that with every up-shift of the transmission the mechanical advantage of the gearing lowers.( example: riding up hill on a 10speed bike in 1st gear vs.10th gear, 1st is easier.) The second reason is that wind resistance increases 4times when the speed doubles. (example: sticking your hand out the window of a car going 20mph vs. when the car is doing 100mph and you'll feel the difference.)Wind resistance is main limiting factor for top speed o most sports cars.
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