physics
posted by kelly .
A rocket is launched straight up from the earth's surface at a speed of 1.80×104 m/s^2.
a)What is its speed when it is very far away from the earth?

Energy dictates that some of the KE will go to increasing gravitational PE.
initial KE=finalKE+(GMe/reGMe/infinity)
initialKE=finalKe+GMe/re
solve for final Ke, then final velocity 
is Me the mass of the earth?
and re the radius of the earth?
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