Two identical blocks each of mass \( M=9 \mathrm{~kg} \) are placed...

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Two identical blocks each of mass \( M=9 \mathrm{~kg} \) are placed on a rough horizontal surface of frictional
\( \mathrm{P} \) coefficient \( \mu=0.1 \). The two blocks are joined by a W light spring a block \( B \) is in contact with a vertical fixed wall as shown in figure. A bullet of mass \( m=1 \mathrm{~kg} \) and \( v_{0}=10 \mathrm{~m} / \mathrm{s} \) hits block \( \mathrm{A} \) and gets embedded in it. Find the maximum compression of spring. (Spring constant \( =240 \mathrm{~N} / \mathrm{m}, g=10 \mathrm{~m} / \mathrm{s}^{2} \) )
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