An artificial satellite orbiting around the earth does not fall down because the attraction of the earth
Correct answer: D. provides the necessary acceleration for its motion in a curved path
- A. vanishes at such distances
- B. is balanced by the attraction of the moon
- C. is balanced by the centrifugal force
- D. provides the necessary acceleration for its motion in a curved path
Explanation
An artificial satellite orbiting around the Earth does not fall down because the gravitational force of the Earth provides the necessary centripetal acceleration for the satellite's motion in a curved path. The satellite moves at a constant speed while continuously falling toward the Earth, but its forward motion matches the curvature of the Earth, leading to a stable orbit.
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