A) 11.2 km/sec
B) 6 km/sec
C) 4 km/sec
D) 8 km/sec
Correct Answer: D
Solution :
From the formula the orbital velocity near earth is \[=\sqrt{Rg}\] \[=\sqrt{6.4\times {{10}^{6}}\times 10}=8km\text{/}\sec \]
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