- A The velocity at which a rocket leaves the atmosphere
- B The velocity at which a rocket orbits the Earth
- C The velocity at which a rocket travels through space
- D The velocity at which a rocket burns out
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Answer:
A
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The escape velocity is the minimum speed an object needs to achieve to escape the gravitational pull of a massive body, such as the Earth. In the case of a rocket leaving the Earth's atmosphere, it needs to reach the escape velocity in order to overcome the gravitational pull of the Earth and leave the atmosphere.
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