Determine the time in which the smaller block reaches other end of bigger block in the figure. $(g = 10\ m s^{-2})$ .......... $\sec$
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$\mathrm{d}_{1}=\frac{4}{2}=2 \mathrm{m} / \mathrm{sec}^{2}$

$\mathrm{d}_{2}=\frac{6}{8}=\frac{3}{4} \mathrm{m} / \mathrm{sec}^{2}$

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