During an experiment, a physicist uses a firecracker to break apart a cube. The cube is placed on a rough horizontal floor. When the explosion happens, the cube is broken into two pieces which move in opposite directions. The first piece of mass M₁ moves on the floor 65 cm before coming to rest while the second piece of mass M₂ moves a distance d. Find the distance d if M₁ = 5 M₂. Consider that the coefficient of kinetic friction for both pieces is the same.