Two equal-mass satellites A and B revolve around the same planet in circular orbits with $r_B=4r_A.$ Which statements are correct?
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Question

Two equal-mass satellites A and B revolve around the same planet in circular orbits with r_B=4r_A. Which statements are correct?

G1 Physics · Accepted Answer

For circular orbits v∝r⁻¹ᐟ², T∝r³ᐟ², |E|∝1/r and L=m√(GMr)∝√r. For radius ratio 4, the respective ratios are 2, 8, 4 and 2.