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Question
Observe the given figure and answer these following questions.
The orbit of a planet moving around the Sun
- What is the conclusion about the orbit of a planet?
- What is the relation between velocity of planet and distance from sun?
- Explain the relation between areas ASB, CSD and ESF.
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Solution
- The orbit of a planet is an ellipse with the Sun at one of the foci.
- The closer a planet is to the Sun, the greater will be its velocity.
- Area ASB, CSD and ESF are equal when the planet covers distance AB, CD, EF in the same time.
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