- #1
MillerGenuine
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Homework Statement
I would like to calculate the gravitational net force on the Earth by the sun, and all 7 planets (mercury-neptune).
Homework Equations
G* (m1*m2)/d^2
The Attempt at a Solution
I know this is a simple case of F_12 + F_21 + F_13 + F_31 ...etc
I am trying to make a model of our solar system, so i need all gravitational forces on earth, all gravitational forces on mercury, venus, mars,...etc. So I need to do action reaction for 8 planets, but I am having a bit of trouble visualizing the summation of forces for all 8 planets.
F_earth = G* (M_sun*M_earth)/d^2 + G*(M_mercury*M_earth)/d^2 + G* (M_venus*M_earth)/d^2...etc
would this extremely tedious summation be correct?
Maybe there is a more efficient equation do calculate net force on all planets in the solar system?