Practice: Mechanical Energy Conservation in Orbits

The diagram shows two planets orbiting a star. Both planets have the same mass. Planet 2 orbits the star at a radius twice that of planet 1.

What is the ratio of the kinetic energy of planet 2 to that of planet 1?

  • A14
  • B4
  • C1
  • D2
  • E12

Correct Answer

Incorrect Answer

Action required

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.