Originally Posted by **Adam97** Question.
The sun exerts a gravitational force of 1.64 x 10^21 N on Mars. Calculate the mass of Mars. [ Mass of the Sun = 1.989 x 10^30 kg. Mean seperation of Mars from the Sun = 2.279 x 10^11 m.]
Can anyone help me with this? |

$\displaystyle F = \dfrac{G M_s ~ M_m}{r^2}$

So, G is G, you are given the mass of the Sun ( $\displaystyle M_s$ ), and the distance between them r. So what is the mass of Mars, $\displaystyle M_m$?

What does this have to do with electric fields?

-Dan