How can an object (say, car) accelerate from some velocity to another if there is an infinite number of velocities it has to attain first?

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E.g. how can the car accelerate from rest to 5m/s if it first has to be going at 10^(-100) m/s which in turn requires it to have gone through 10^(-1000) m/s, etc.? That is, if a car is going at a speed of 5m/s, doesn’t that mean the magnitude of its speed has gone through all numbers in the interval [0,5], meaning it’s gone through all the numbers in [0,10^(-100000) ], etc.? How can it do that in a finite amount of time?

In: Mathematics

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Anonymous 0 Comments

Your question leads to a fun joke (which I am sure I will butcher).

A mathematician and an engineer are having a discussion. The mathematician says:

> We shouldn’t exists! To procreate, you must able to touch your partner. So you walk half way there. Then you walk half of the additional distance. Then again! And so on and so forth. Therefore we can’t procreate!

The engineer’s answer:

> I can get close enough

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