Hello, I need help on deriving a equations for the moon's acceleration around the earth. I've already found the total acceleration (a=Gm/r^2) but what i need to do is split this acceleration up into its x and y components, and derive equations in terms of a, r, x, and/or y for any given position in the moon's orbital path(adsbygoogle = window.adsbygoogle || []).push({});

So far I have ax = a*cos(T) and ay = a*sin(T) where T is the angle from the x-axis. What I'm having trouble with is deriving T. If those are wrong to begin with, can someone put me on the right track? Thanks!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Moon's orbital acceleration

**Physics Forums | Science Articles, Homework Help, Discussion**