The coefficient of static friction for both wedge surfaces is $0\mathrm{.}30$ and that between the $\backslash (30-\backslash$mathrm$\{$kg$\}\backslash )$ concrete block and the $\backslash (30^\{\backslash$circ$\}\backslash )$ incline is $0\mathrm{.}67.$ Determine the minimum value of the force $\backslash ($ P $\backslash )$ required to begin moving the block up the incline. Neglect the weight of the wedge.

Answer: $\backslash ($ P$=\backslash )$ N