A) \[\frac{55}{57}\]
B) \[\frac{113}{117}\]
C) \[\frac{57}{55}\]
D) \[\frac{397}{403}\]
Correct Answer: D
Solution :
From \[s=\frac{1}{2}a{{t}^{2}}\]. \[\Rightarrow \] \[a=\frac{2s}{{{t}^{2}}}=\frac{2\times 0.6}{{{(4)}^{2}}}=\frac{3}{40}\] But \[a=\left( \frac{M-m}{M+m} \right)g\] \[\Rightarrow \] \[\frac{m}{M}=\frac{397}{403}\] (Take, \[=10\,\,m/{{s}^{2}}\])
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