Humble_Indication798
Humble_Indication798 t1_ixuejf8 wrote
They were probably talking about the net gravitational force felt from the spaceship or some object from multiple planetary bodies.
The equation for force from gravity is (Gm1m2)/r^2 G is a constant 6.67*10^-11 M1 is the planet M2 is the object you are interested in R is the distance BETWEEN THE TWO CENTERS OF THE OBJECTS
Humble_Indication798 t1_ixwub3p wrote
Reply to comment by _Jaquen_Hgar_ in How would one calculate the gravity of a planet? by LoreCriticizer
Yeah but if you consider force=massacceleration, m2A=gm1m2/r^2 then A=g*m1/r^2 and A is acceleration from gravity which is the same as the formula you posted. Which is independent of the mass of the second object
I assumed the person who posed the question initially could get to this point algebraically.