KVPY2015PhysicsGravitation
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.
Options
- AK < |U| always
- BK>|U| always
- CK=|U| always
- DK=U for two positions of the planet in the orbit.
Correct answer
A. K < |U| always
Step-by-step solution
Total energy must be less than zero and as potential energy is negative so answer is A