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I got next data:

The accelration is 90m/s2(that 2 means squared).

Then the distance is 2km(2000m).

I have to find how high speed will he reach in 2km-s(thats the distance i wrote up there).

The task text is like this:

Rocket starts with accelration 90m/s2(that 2 means squared). How high speed he reaches after 2km-s. What kind of formulas i need to solve this little problem.

Thank you.