źródło: ----
\frac{F_1}{F_2}
F_1=G\frac{m_1\cdot m_2}{r^2}
m_2=3m_1
r_2=\frac{r_1}{2}
\frac{G\frac{M_z m}{r^2}}{G\frac{M_zm}{(\frac{r}{2})^2}}=\frac{x}{600N} |:G\frac{M_zm}{r^2}
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