Mercury is the smallest planet, and as a consequence has the smallest gravity. Mars is not as dense as Mercury, but is so much larger--it has the second lowest surface gravity.
Eris (which is larger than Pluto), has less gravity than Mercury, but it along with Ceres and several other large solar system objects are considered "dwarf" planets.
Mercury. Ithasamassof 3.30×1023 kg.
The planet with the lowest mass.
In our Solar System, that will be Mercury with an ev of of 4.25 km/s
Venus is the closest to circular, with an eccentricity of less than 0.01
Escape velocity depends on mass. The planet with the lowest mass is Mercury.
Mercury, Earth, Mars and Pluto
earth
Charon is the largest satellite of the dwarf planet Pluto and has an escape velocity of 0.36 mi/second or 1,296 miles per hour.
The escape velocity on the planet Saturn is 35.5 kilometre per second. That is, a body has to be projected with a velocity of 35.5 kilometre per second so that it can escape from the gravitational pull of the planet. (Escape velocity on the earth is about 11.2 kilometre per second.)
The speed that ab object must travel at to escape a planet's gravity is called escape velocity. This value varies depending on the mass and diameter of the planet. Here are the escape volcities of the eight planets of our solar system. Mercury: 9,400 mph Venus: 23,000 mph Earth: 25,000 mph Mars: 11,000 mph Jupiter: 133,000 mph Saturn: 77,000 mph Uranus: 48,000 mph Neptune: 53,000 mph Note that escape velocity only takes gravity into account and ignores other forces. An object launched from Earth's surface or from any other planet with a substantial atmosphere at escape velocity would be quickly destroyed and slowed down by air resistance.
A rocket that doesn't reach "escape velocity" will be overcome by gravity and will be pulled back down to Earth. Also, rockets which go into orbit have not reached escape velocity. Escape velocity is what is needed to completely leave earth's gravity well.
the escape velocity of moon is less than that of earth...so the gas easily escape out and hence moon has no atmosphere..
Pluto is the planet that has the lowest orbital velocity relative to that of the earth. The orbital velocity of Pluto is 0.159.
"Escape velocity" is defined as the velocity required in order to guarantee that the object will not fall back under the influence of the planet's gravitational attraction. If it's possible to escape from a planet's gravitational attraction, then an escape velocity can be defined and calculated.
The escape velocity is determined by the gravity of the planet which in turn is determined by the mass and size of the planet
The escape velocity of planet Jupiter is: ~133,097.71 miles per hour.
Escape velocity is what a moving body has to achieve in order not to be pulled back down to the planet. For Earth it is about 7 miles per second.
The planet Mercury's escape velocity is 4.3 kilometers per second. The escape velocity of the Earth is 11.2 kilometers per second.
That would be its escape velocity.
The greater the mass of the planet, the greater will be the escape velocity.
It depends on the planet.
Charon is the largest satellite of the dwarf planet Pluto and has an escape velocity of 0.36 mi/second or 1,296 miles per hour.
Escape velocity is given by. √2gR or √2GM/R .therefore escape velocity is directly prop. to gravity of a planet or star or any other body. More is the gravity more is the escape velocity. The escape velocity of our earth is 11.2 km/s and that of moon is 2.31 km/s
To overcome gravity, you must reach "Escape Velocity" to overcome gravity and escape a planet's orbit.