What is the average gravity surface on mars?

Answer 1

It's the surface gravity that keeps you held down to a planet, otherwise you would free float. Surface gravity is what keeps the atmosphere and the water held to a planet too. On Earth, the surface gravity due to its magnetic field is 0.5 to 2.0 Gauss.

In our Milky Way Galaxy there are 235 planetary bodies, of which 169 moons are in our Solar System. These 169 moons are the well documented satellite moons of the 9 planets. Jupiter alone has 63 moons. The challenge lies in how we can build atmospheres on them to support human life and all other living things. Also, we have to weed out the ones that are inhospitable.

Venus=0, Earth=1, Mars=2, Jupiter=63, Saturn=60, Uranus=27, Neptune=13, Pluto=3

The trick is to categorize them into planets/moons that either spin on their axis, or don't.

Here's how it would work: We'd drill a shaft halfway down the center of the planet/moon and insert a Superconducting Ring that is cryogenically sealed in liquid helium, (much like an MRI machine and there are several companies which specialize in this technology). The Superconducting Ring would range from 4 to 14 Tesla, depending on the amount of iron/nickel resident in the core. Once the Superconducting Ring is supercooled to transition into a superconducting state (kelvins), a permanent magnet is used to induce a current. This current is said to "persist" forever (persistent currents in physics). Using a magnetometer, you'd measure the magnetic field at a given point on the surface of the globe, if it's within 0.5 to 2.0 Gauss, it's a viable atmospheric bubble. Next, pump in nitrogen, oxygen and co2 and bring grass seeds and voila, an atmosphere.

Another approach is to create/enhance the internal "Dynamo" in a globe which spins on its axis. If the globe is geologically active, it might have a light atmosphere owing to the "eddy currents" arising from the spinning of molten iron/nickel in the core. This creates the surface gravity which holds the atmosphere to a planet. To increase the surface gravity, you would have to drill a shaft halfway down the center of the globe and pour molten iron/nickel down the shaft, and add some radioactive element like polonium to keep it molten forever. Once the magnetic field strength at a point on the surface of the globe is 0.5 to 2.0 Gauss, it's a viable atmospheric bubble capable of holding down life sustaining gases like nitrogen, oxygen and CO2.

Answer 2

About 1/3 of Earth's gravity on the surface.

Answer 3

The force of gravity is equal to the gravitational constant time the mass of object a(in kilograms) times the mass of object b(in kilograms) devided by the distance (center to center) of both objects squared. The grav. constant is (6.674208 plus or minus 0.00067) x 10 to the negative 11 times cubic meters times mass(in kilograms) to the negative 1 time speed to the negative 2. So we would have to know how fast an object accelerates toward mars to really get a good answer. 1/3 sounds good if the center of mars is not composed mostly of something heavy like iron or lead.

Answer 4

Yup, 1/3 of Earth's.

Answer 5

3/8 that of Earth.