Two blocks, A and B, with masses of MA = 2M and MB = M, respectively, are connected together a massless and non-elastic cord, as shown in the drawing. Block A lies on a table top, while block B hangs in the string a height, H above the floor. The massless pulley gets stuck and can thus not achieving any translational movement, but it can rotate freely and frictionlessly about its own center. Assume that the pulley rotates so that the cord does not slide on the pulley. The system starts quietly before it is released. a) Assume that block A slides frictionlessly on the table top. Assume that the table top is long enough to block A is still on the table when block B hits the floor. Show using energy conservation that the speed of the blocks as block B hits the floor is given by: