Physics

Problem

Two satellites, A and B, have masses

m

and

2m

respectively. A is in a circular orbit of radius

R

, and B is in a circular orbit of radius

2R

around the earth. The ratio of their kinetic energies,

T_A/T_B

, is: (1) 2 (2)

\sqrt{\frac{1}{2}}

(3) 1 (4)

\frac{1}{2}