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ulsaikia
ANSWERS: 3
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I think it refers to the velocity at which something is able to escape the gravitational pull of a planetary body.
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Escape velocity is the speed needed to break free of the gravitational pull of a large mass. "on the Sun, the Sun's gravity: 617.5 km/s on Mercury, Mercury's gravity: 4.4 km/s at Mercury, the Sun's gravity: 67.7 km/s on Venus, Venus' gravity: 10.4 km/s at Venus, the Sun's gravity: 49.5 km/s on Earth, the Earth's gravity: 11.2 km/s at the Earth/Moon, the Sun's gravity: 42.1 km/s on the Moon, the Moon's gravity: 2.4 km/s at the Moon, the Earth's gravity: 1.4 km/s on Mars, Mars' gravity: 5.0 km/s at Mars, the Sun's gravity: 34.1 km/s on Jupiter, Jupiter's gravity: 59.5 km/s at Jupiter, the Sun's gravity: 18.5 km/s on Saturn, Saturn's gravity: 35.5 km/s at Saturn, the Sun's gravity: 13.6 km/s on Uranus, Uranus' gravity: 21.3 km/s at Uranus, the Sun's gravity: 9.6 km/s on Neptune, Neptune's gravity: 23.5 km/s at Neptune " http://en.wikipedia.org/wiki/Escape_velocity#List_of_escape_velocities
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Escape velocity is the velocity needed by an object to become free of the gravitational pull.It can be calculated by following formula. V=underroot of 2gR g the gravity of paticular planet R the radius of the subject planet
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