Question

if a satellite of mass 400 kg revolves around the earth in an orbit with speed 200m/s then its potential energy is

Answer 1

The forumla of potential energy is P.E = mgh where m is the mass in kilogram, g is the acceleration due to gravtiy which is 9.8 m/s at the surface of earth So P.E = mgh = 400x9.8x200 = 784,000m/s is the potential energy

Answer 2

potential energy = P.E = mgh
m = mass
g =acceleration due to gravity 

 P.E = mgh = 400x9.8x200 

= 784,000 m/s is the potential energy