## What is the value of gravitational acceleration on Mars?

**The value of the acceleration of gravity on Mars 3.711 m / s ^{2}** , where he owns all the planets of solar system gravity on its surface varies from planet to another, and by scientists of gravity value of the planet Mars , based on Newton 's theory of gravity, which states that the force of gravity exercised by a body suit With its mass, the law can be expressed mathematically as follows:g = m / r

^{2}

**whereas:**

- g: the surface gravity of Mars.
- m: mass.
- r: radius.

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- Calculating the mass of Mars in multiples of the mass of the Earth:
- Earth's mass = (5.976 × 10
^{24}) kg. - The mass of Mars = (6.4171 x 10
^{23}) kg. - Divide the mass of Mars by the mass of the Earth, so the mass of Mars relative to the mass of the Earth = 0.107 times the mass of the Earth.

- Calculating the radius of Mars in multiples of the radius of the Earth:
- Earth's radius = 6,371 km.
- The radius of Mars = 3389.5 km.
- Divide the radius of Mars by the radius of the Earth, so the radius of Mars in multiples of the radius of the Earth = 0.532 Earth radius.

- Writing the mathematical relationship to calculate gravity:
**g = m / r**^{2}- Substitute the mass and radius of Mars into the equation.
- The gravity of Mars = 0.107 /(0.532)
^{2}. - Mars gravity = 0.376 m / s
^{2}of the Earth 's gravity.

## Gravity on Mars compared to Earth

The value of gravity on the surface of the Earth is 9.8 m / s ^{2} , and the value of the acceleration of gravity on Mars relative to the Earth is 0.376 m / s ^{2} of the gravity of the Earth, and thus the gravity of Mars is about 38% of the gravity of the planet.^{}

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^{ and}this difference in gravity has an effect on astronauts when they land on Mars, as they experience less gravity than Earth.

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## What are the most important observations of gravitational acceleration on Mars?

One of the most important observations of gravitational acceleration belongs to 3 NASA spacecraft orbiting around Mars, as it relied on the data sent by these vehicles and on a study of their movement changes to draw a map showing the gravitational acceleration on Mars.

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## Frequently asked questions about Mars

Here are some frequently asked questions about Mars:

**What is the size of the planet Mars?**

Mars is the second smallest planet in the solar system. However, the size of Mars cannot be given a clear number, so scientists describe the planet according to many factors, the most important of which is its radius and circumference.^{}

^{11}10 km

^{3}, and it is mentioned that the diameter of Mars is 53% of the diameter of the Earth.

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**What is on Mars?**

Mars has many canyons, volcanoes, dry lakebeds, and craters scattered all over it, as it is of a rocky nature, and has an atmosphere that consists of clouds and winds like Earth, and small dust storms resembling hurricanes occur in it.^{}

**How far is Mars from Earth?**

The minimum distance between the two planets Mars and Earth is 54.6 million m ^{2} , while the largest distance between them is 401 million m ^{2.} It is worth noting that both planets revolve around the sun, and they move in elliptical orbits during their orbit around the sun.^{}

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**How long does it take to travel to Mars?**

According to the website of NASA's Goddard Space Flight Center, traveling to Mars in the ideal arrangement between Earth and Mars would take about 9 months, as the time it takes to reach Mars depends on where the two planets are in their orbit when the flight begins, and on technological developments in propulsion systems. .^{}

**Is it possible to live on Mars?**

The possibility of Mars being suitable for human habitation is very small; Because its atmosphere is mostly composed of carbon dioxide, its surface is very cold, and its gravity is only 38% of the Earth's gravity.

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