What is the period of the satellite's orbit?

Question

(NOTE: The satellite moves in a circular orbit around the Earth at a speed of 4114 m/s and its altitude above the surface of the Earth is 17122000 meters.)

___ hours

This question is coming from my web assignment from http://www.webassign.com/.

Answer 1

You have the orbital speed and the altitude. Look up the radius of the Earth and add the altitude to it. That will give you the radius of the circle (we will assume that the orbit is circular.) Calculate the circumference of the circle and then divide by the orbital speed to get the number of hours.

5 JAN 07, 0028 hrs, GMT.