A) 45 kg
B) 202.5 kg
C) 90 kg
D) 40 kg
Correct Answer: D
Solution :
\[\frac{{{g}_{m}}}{{{g}_{e}}}=\frac{{{M}_{m}}}{{{M}_{e}}}\times {{\left( \frac{{{R}_{e}}}{{{R}_{m}}} \right)}^{2}}=\left( \frac{1}{9} \right)\ {{\left( \frac{2}{1} \right)}^{2}}=\frac{4}{9}\]Þ \[{{g}_{m}}=\frac{4}{9}{{g}_{e}}\] \ \[{{W}_{\text{m}}}=\frac{4}{9}\times {{W}_{e}}=\frac{4}{9}\times 90=40\ kg\]
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