Question : What is the Earth's escape velocity?
Option 1: 2.8 km/s
Option 2: 5.6 km/s
Option 3: 11.2 km/s
Option 4: 14 km/s
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Correct Answer: 11.2 km/s
Solution : The correct option is 11.2 km/s .
The term "escape velocity" refers to the velocity at which a moving object, such as a rocket, must be travelling to leave the gravitational field of a celestial body, such as the Earth, and travel into space. The escape velocity of the Earth is 11.2 km/s.
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