At what height from the surface of earth the gravitational potential and the value of g are -5.4 xx 10^(7) J kg^(-2) and 6.0 ms^(-2) respectively ? Take the radius of earth as 6400 km :

At what height from the surface of earth the gravitational potential a

1.	At what height from the surface of earth the gravitational potential and the value of g are -5.4 xx 10^(7) J kg^(-2) and 6.0 ms^(-2) respectively ? Take the radius of earth as 6400 km :
Answer» 2600 km 1600 km 1400 km 2000 km Answer :A