1. Tardigrade
  2. Question
  3. Physics
  4. A planet is orbiting the sun in an elliptical orbit. Let U denote the potential energy and K denote the kinetic energy of the planet at an arbitrary point on the orbit. Choose the correct statement.

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Q. A planet is orbiting the sun in an elliptical orbit. Let $U$ denote the potential energy and $K$ denote the kinetic energy of the planet at an arbitrary point on the orbit. Choose the correct statement.

KVPYKVPY 2015

Solution:

For a satellite or planet, if total energy is $E$, then
kinetic energy, $K=-E$
and potential energy, $U=2 E$
where, $E$ is negative.
So, $|U|>K$.