Two satellites A and B move in circular orbits of radii and respectively around the…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Two satellites A and B move in circular orbits of radii

r

and

4r

respectively around the same planet. Without detailed calculation, state the ratio of their orbital speeds

v_A : v_B

and give a brief reason for your answer.