You need to apply a force over a certain time period in order to get to a certain speed. Unless you just outright set its velocity, you will need to know how long it will take from rest to achieve that top speed similar to how in America they give a car’s “0 to 60mph” time.
You can apply any force greater than 0 and get to the speed you want as long as you give it enough time.
It also doesn’t look like there is any way for it to stop accelerating.