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