A mass-less string is wrapped about a solid disk of mass m1 and tied to a block of mass m2. The disk is free to rotate on a frictionless horizontal axle. This picture is now copied precisely apart from that the disk is substituted with a bicycle wheel (of mass m1, of course) with the same radius. A wheel distinct from a disk in that essentially all of the mass is on the rim. When the two blocks are now free from rest concurrently from the same height, which one will hit the ground first? Or is it a tie? Describe your reason.