Chapter 7, Problem 55A

To determine

To Choose: The correct option.

Answer to Problem 55A

Option b and c

Explanation of Solution

Introduction:

The speed of an object in circular orbit is:

  $v=\sqrt{\frac{G{m}_M}{r}}$

Where, $G$ is the gravitational constant, $r$ is the orbital radius, and $m_E$ is the mass of the Earth.

As it can be seen from the above formula of the orbital speed of an object, the speed of satellite will depend only on the mass of the Earth and its distance from the Earth.

Conclusion:

Thus, option b and c are correct.