A) \[0.5\,g\,m{{s}^{-2}}\]
B) \[0.99\,g\,m{{s}^{-2}}\]
C) \[1.01\,g\,m{{s}^{-2}}\]
D) \[0.90\,g\,m{{s}^{-2}}\]
Correct Answer: A
Solution :
For height \[h\] above the earths surface \[g=g\left( 1-\frac{2h}{{{R}_{e}}} \right)=g\left( 1-\frac{64}{6400} \right)\] \[(\because \,\,{{R}_{e}}=6400\,\,km)\] \[=g(1-0.01)\] \[=0.99\,\,m{{s}^{-2}}\]
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