A small wooden block, of mass M, lies in the middle of a horizontal table of length L and height h above the floor. The coefficient of kinetic friction between this block and the surface of the table is ?. A bullet, of mass m, is shot with a horizontal velocity into the block. As a result, the block (with the embedded bullet) starts moving across the table and finally lands on the floor a horizontal distance D from the edge of the table. Use this information to find the speed of the bullet.