1. A computer is reading data from a rotating CD-ROM. At a point that is 0.0330 m from the center of the disk, the centripetal acceleration is 264 m/s2. What is the centripetal acceleration at a point that is 0.0702 m from the center of the disc? 2. ac=v2/r 3. So my thoughts here are that it should be assumed that the velocity is constant. So I need to fine that velocity for the known radius and acceleration with the equation about. After I find the velocity, I can plug it into the equation with the new radius and find the acceleration that way. ac=v2/r 264=v2/.0330 v2=8.712 m/s v=2.95161 m/s then plugging that into the equation with the other radius ac=v2/r ac=8.712/.0702 ac=124.10256 m/s2 This is not the right answer for my homework though. Not sure what I am doing wrong. Anyone know?