# Answer to Question #1359 in Mechanics | Relativity for Jon ALlen

Question #1359

The planet Mars has a mass of 6.1 × 1023 kg

and radius of 3.1 × 106 m.

What is the acceleration of an object

in free fall near the surface of Mars?

The value of the gravitational constant is

6.67259 × 10−11 N · m2/kg2.

Answer in units of m/s2.

and radius of 3.1 × 106 m.

What is the acceleration of an object

in free fall near the surface of Mars?

The value of the gravitational constant is

6.67259 × 10−11 N · m2/kg2.

Answer in units of m/s2.

Expert's answer

The gravitation acceleration can be written as

g = GM/R

g = GM/R

^{2}= 6.67259 × 10^{−11}* 6.1 × 10^{23}/ (3.1 × 10^{6})^{2}= 4.24 m/s^{2}.
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