Question

Two satellites are moving in the same circular orbit around the earth. They must have the same

• A. mass
• B. angular momentum
• C. kinetic energy
• D. speed

Answer 1

Answer: (D)

speed

Answer 2

$v_{0}=\sqrt{\frac{GM_{e}}{r}}$ Since, orbital speed depends upon mass of earth and the separation. Hence, $v_{0}$ is same for both satellites.