A) 1.41 km/s
B) 2.82 km/s
C) 4km/s
D) 8 km/s
Correct Answer: C
Solution :
Escape velocity \[{{\upsilon }_{e}}=\sqrt{2gR},g=8m/{{s}^{2}}\] \[=0.008km/{{s}^{2}}\] \[=\sqrt{2\times 0.008\times 1000}\] \[=4km/s\]
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