1. Tardigrade
  2. Question
  3. Physics
  4. The orbital speed of an artificial satellite very close to the surface of the earth is vo . Then the orbital speed of another artificial satellite at a height equal to the three times the radius of the earth is:

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The orbital speed of an artificial satellite very close to the surface of the earth is $ {{v}_{o}} $ . Then the orbital speed of another artificial satellite at a height equal to the three times the radius of the earth is:

KEAMKEAM 2001

Solution:

$ {{v}_{o}}=\sqrt{\frac{GM}{R}} $
$ v_{o}^{}=\sqrt{\frac{GM}{R+3R}}=\sqrt{\frac{GM}{4R}} $
$ \Rightarrow $ $ v_{o}^{}=\frac{1}{2}{{v}_{o}}=0.5\,{{v}_{o}} $