A satellite has kinetic energy K, potential energy V and total energy E. Which of the following statements is true?
As we know that for the earth and satellite system,
Kinetic energy, K=GMm2a
Potential energy, V=−GMma
And total energy, E=−Gmm2a
Where, a= radius of the orbit of the satellite and
On the basis of above three expression for the energies, we have
K=GMm2a=−⎛⎜ ⎜ ⎜⎝−GMma2⎞⎟ ⎟ ⎟⎠=−V2