If the kinetic energy of a satellite is halved, its orbital radius becomes _____

If the kinetic energy of a satellite is halved, its orbital radius becomes _____ Correct Answer 2 times

The kinetic energy of a satellite is; KE = (1/2) x (G x m x M)/r r: Orbital radius Let new kinetic energy be KE’ KE’ = KE/2 = /2 = (1/2) x (G x m x M)/(2r) = (1/2) x (G x m x M)/r’ r’: New orbital radius r’ = 2r.
Bissoy MCQ

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