A wedge of mass M = 2 m 0 rests on a smooth horizontal plane. A small block of mass m 0 rests over it at left end A as shown in figure. A sharp impulse is applied on the block, due to which it starts moving to the right with velocity v 0 = 6 m/s. At highest point of its trajectory, the block collides with a particle of same mass m 0 moving vertically downwards with velocity v = 2 m/s and gets stuck with it. If the combined mass lands at the end point A of the body of mass M, calculate length 𝓁 in cm. Neglect friction, take g = 10 m/s 2 .