terdapat dua benda yang sama besar,benda A dan benda B,masing masing massanya adalah m dan 4m berjarak R satu sama lain, Di titik C, resultan medan gravitasi k

[tex] \frac{G.m_{1} }{r ^{2} _{1} } = \frac{G.m_{2}}{r^{2}_{2}}\\\\ \frac{m_{1}}{r ^{2} _{1} } = \frac{m_{2}}{r ^{2} _{2} }\\\\ \frac{m_{1}}{m_{2}} = \frac{r ^{2} _{1} }{r^{2}_{2}}} \\\\ \frac{m_{1}}{m_{2}} = (\frac{r _{1} }{r_{2}}} )^{2}\\\\ \frac{m}{4m} = ( \frac{x}{r-x})^{2} --\ \textgreater \ akarkan kedua ruas\\\\ \frac{1}{2} = \frac{x}{r-x}\\\\ r - x = 2x\\ r = 3x \\ \frac{1}{3}r = x [/tex]

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