What is the magnitude of the ratio of KE and PE of a satellite revolving around a planet in a circular orbit of radius “R”?
What is the magnitude of the ratio of KE and PE of a satellite revolving around a planet in a circular orbit of radius “R”? Correct Answer 1:2
n:Let the mass of the satellite be “m” and mass of the planet be “M”. Kinetic energy (KE) = 1/2 x m x v2 = (1/2) x (G x m x M)/R Potential energy (PE) = – (G x m x M)/R KE : PE = -1:2 Therefore, (the magnitude of KE:PE) = 1:2.