Gravitation
Classical Mechanics
Level
1
- All planets move In an elliptical orbits with the sun at a focus.
- The radius vector from the sun to the planet sweeps equal area in equal time.
- The square of the time period of a planet is proportional to the cube of the semimajor axis of the ellipse.
How many of the above statements are correct?
The answer is 3.
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All of these are true.
They are Kepler's laws of planetary motion.