- #1

TalliThePrune

- 11

- 0

**1. Calculate the gravitational field strength at 500km above Mars' surface.**

Mass of Mars: 6.39 x 10

Radius of Mars: 3.39 x 10

Constant G: 6.67 x 10

2. I used the equation g = GM / r

Mass of Mars: 6.39 x 10

^{23}kgRadius of Mars: 3.39 x 10

^{3}kmConstant G: 6.67 x 10

^{-11}2. I used the equation g = GM / r

^{2}**3. To begin with I added the 500km height above ground to the radius, giving 3.89 x 10**

So subbing this into the formula:

(6.67 x 10

= 2.82 N/kg

Is this correct? Thanks in advance!

^{3}km. I then converted this to metres, which is 3.89 x 10^{6}m.So subbing this into the formula:

(6.67 x 10

^{-11}) x (6.39 x 10^{23}) / (3.89 x 10^{6})^{2}= 2.82 N/kg

Is this correct? Thanks in advance!