A satellite is moving in a circular orbit at a constant speed due to gravity.Which of the following statements is correct about the above figure?
Correct answer: A. The earth does zero work on the satellite.
- A. The earth does zero work on the satellite.
- B. The earth does positive work on the satellite.
- C. The earth does negative work on the satellite.
- D. The concept of work is not applicable in circular motion.
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About Gravitation
Newton’s law of universal gravitation relates the force between masses to their masses and separation, while gravitational field strength explains weight and orbital motion. The topic covers satellite velocity and period, escape ideas, weightlessness in free fall, and artificial gravity, which differs from ordinary gravitational attraction.
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