Gideon holds a string with 4 bolts tied to it at un-equal intervals up from the ceiling of the undergrad- uate physics labs. He drops the string such that it lands on a sheet of metal and hears the "clink " of each bolt as it hits the metal sheet. Gideon hears the bolts hit the metal at 0.1-second intervals. What are the positions of the 3 subsequent bolts relative to the first one if the first bolt falls a distance of 2m?