A) \[11.2km/s\]
B) \[2.38\text{ }km/s\]
C) \[59.5\text{ }km/s\]
D) \[618\text{ }km/s\]
Correct Answer: D
Solution :
The escape velocity is given by \[{{v}_{e}}=\sqrt{\frac{2GM}{r}}\] So, \[{{v}_{e}}=\sqrt{\frac{2\times 6.67\times {{10}^{-11}}\times 1.99\times {{10}^{30}}}{6.96\times {{10}^{8}}}}\] \[=617589.3\,\,m/s\] or, \[{{v}_{e}}=617.6\,km/s\]You need to login to perform this action.
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