A. Gravitational Pull of the sun on the satellite.
B. Gravitational Pull of earth on the satellite
C. The rocket engine attached to the satellite
D. None of the above
B. Gravitational Pull of earth on the satellite
The correct answer is:
B. Gravitational Pull of earth on the satellite
Here’s why:
- A satellite orbits Earth in a (nearly) circular path.
- To maintain a circular path, an object needs a centripetal force acting inwards, constantly “pulling” it towards the center of the circle.
- Earth’s gravity acts on the satellite, pulling it inwards.
- This inward pull from Earth’s gravity provides the necessary centripetal force that keeps the satellite in its orbit.
The other options are not responsible for a satellite’s orbit around Earth:
- A. Gravitational Pull of the sun on the satellite: The Sun’s gravity does exert a pull on the satellite, but its influence is much weaker compared to Earth’s gravity at that distance.
- C. The rocket engine attached to the satellite: Rocket engines are typically used to launch the satellite into orbit, not to maintain its orbit. Once in orbit, the engine is usually turned off.
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