Posted by AKUMA on .
Law of Gravitationfind an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is negelcted.
The gravitational constant is given as G= 6.67428*10^11 m^3 kg^1 s^2
Please give lots of details in answer

MATH HELP 
bobpursley,
I will be happy to critique your work.
You need to relate initial KE to total gravitational PE from the surface of Earth to infinity. 
MATH HELP 
AKUMA,
Can you please give me a website that would help answer this question