A) 270 N
B) 90 N
C) 30 N
D) 60 N
Correct Answer: C
Solution :
Let m is the mass of object and g is acceleration due to gravity at earths surface then \[mg=270N.\] The acceleration due to gravity at an altitude of\[2{{R}_{e}}\]is, \[g=\frac{GM}{{{({{R}_{e}}+2{{R}_{e}})}^{2}}}-=\frac{g}{9}\] So, required weight \[=mg=\frac{mg}{9}=30\,N\]You need to login to perform this action.
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