Three blocks of masses $4\, kg, 8\,kg$ and $24 \,kg$ are connected to each other with light strings and placed on a smooth horizontal floor as shown in figure. If the system moves with an acceleration of $2\, ms^{-2}$, the applied force $F$ is ............ $N$
Three blocks of masses $4\, kg, 8\,kg$ and $24 \,kg$ are connected to each other with light strings and placed on a smooth horizontal floor as shown in figure. If the system moves with an acceleration of $2\, ms^{-2}$, the applied force $F$ is ............ $N$
- A
$36$
- B
$72$
- C
$18$
- D
$108$
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