Submitted by LoreCriticizer t3_z53aqr in askscience
_Jaquen_Hgar_ t1_ixwrspc wrote
Reply to comment by Humble_Indication798 in How would one calculate the gravity of a planet? by LoreCriticizer
The question asked was about the strength of gravity exerted by one planet, so a slightly more apposite formula is the one for the gravitational acceleration felt by an object of any mass in free fall:
g=G.M/r²
i.e. it’s independent of the mass of the other object.
Humble_Indication798 t1_ixwub3p wrote
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.
[deleted] t1_ixwuorr wrote
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