A) \[-\frac{Gm}{r}\]
B) \[-\frac{5}{2}\frac{Gm}{r}\]
C) \[-\frac{3}{2}\frac{Gm}{r}\]
D) None of these
Correct Answer: B
Solution :
\[V=-\frac{Gm}{r}-\frac{Gm}{2r}-\frac{Gm}{2r-r}\] \[=-\frac{Gm}{r}-\frac{Gm}{2r}-\frac{Gm}{r}\] \[=-\frac{2Gm}{r}-\frac{Gm}{2r}\] \[=-\frac{Gm}{r}\left( 2+\frac{1}{2} \right)=-\frac{5}{2}\,\frac{Gm}{r}\]You need to login to perform this action.
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