A) \[{{v}_{e.}}\]
B) \[\sqrt{2}{{v}_{e.}}\]
C) \[2{{v}_{e.}}\]
D) \[2\sqrt{2}{{v}_{e.}}\]
Correct Answer: C
Solution :
Escape velocity\[{{v}_{e}}=\frac{\sqrt{2G{{M}_{e}}}}{{{R}_{e}}}\] New escape velocity\[v_{e}^{'}=\frac{\sqrt{2G(8{{M}_{e}})}}{{{R}_{e}}}\] \[=2\frac{\sqrt{2G{{M}_{e}}}}{{{R}_{e}}}=2{{v}_{e}}\]You need to login to perform this action.
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