ধরি, পৃথিবী থেকে x দূরত্বে উভয়ের টান সমান হবে।
∴Fe=GMmx2 and Fm=GM81m38.6×107-x2 ∴Fe=Fm
∴GMmx2=GMm8138.6×107-x2 ⇒x2=8138.6×107-x2
⇒1=8138.6×107x-12 ⇒38.6×107x-1=19
∴x=3.474×108 m Ans.
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