Laws of Motion Part 2

In the given arrangement of a doubly inclined plane two blocks of masses M and m are placed. The blocks are connected by a light string passing over an ideal pulley as shown. The coefficient of friction between the surface of the plane and the blocks is 0.25 . The value of m, for which M=10 kg will move down with an acceleration of 2m∕ s2, is : (. take g=10m∕ s2 and tan‌37∘=3∕4)