Two blocks ( m =0.5 kg and M =4.5 kg ) are arranged on a horizontal frictionless table as shown in figure. The coefficient of static friction between…

Two blocks ( $\displaystyle \mathrm{m}=0.5 \mathrm{~kg}$ and $\displaystyle \mathrm{M}=4.5 \mathrm{~kg}$ ) are arranged on a horizontal frictionless table as shown in figure. The coefficient of static friction between the two blocks is $\displaystyle \frac{3}{7}$. Then the maximum horizontal force that can be applied on the larger block so that the blocks move together is \_\_\_\_ N. (Round off to the Nearest Integer) [Take g as $\displaystyle 9.8 \mathrm{~ms}^{-2}$ ]