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Dear Wiki Questioner,

According to Newton's Law of Universal Gravitation:

A=G(m/r^2)

Where A is the acceleration of an object due to gravity

G is the gravitational constant [about 6.67x 10^(-11)m^3kg^(-1)s^(-2)]

m is the mass of the planet [about 6.4x10^23 kg for Mars)

and r is the radius of the planet [about 3.4 x10^6 meters for Mars]

So for Mars, the Acceleration of an object near its surface due to gravity is approximately:

A=6.67x 10^(-11) x 6.4x 10^23 / (3.4x 10^6)^2 meters per second squared

Which comes out to about: 3.7 meters per second squared

Since the acceleration due to gravity of an object on earth's surface is about:

9.8 meters per second squared = one "g"

Mars' gravity is about 38% of earth's gravity or .38g

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16y ago

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