A) \[9.8\times {{10}^{-3}}m/sec\]
B) \[12.8\times {{10}^{3}}m/sec\]
C) \[9.8\times {{10}^{3}}m/sec\]
D) \[11.2\times {{10}^{3}}m/sec\]
Correct Answer: D
Solution :
Escape velocity from surface of earth \[{{v}_{e}}=\sqrt{2gR}\] = \[\sqrt{2\times 9.8\times 6.4\times {{10}^{6}}}=11.2\times {{10}^{3}}\ m/s\]You need to login to perform this action.
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