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**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. a**

_{c}=v^{2}/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.**

a

264=v

v

v=2.95161 m/s

then plugging that into the equation with the other radius

a

a

a

This is not the right answer for my homework though. Not sure what I am doing wrong. Anyone know?

a

_{c}=v^{2}/r264=v

^{2}/.0330v

^{2}=8.712 m/sv=2.95161 m/s

then plugging that into the equation with the other radius

a

_{c}=v^{2}/ra

_{c}=8.712/.0702a

_{c}=124.10256 m/s^{2}This is not the right answer for my homework though. Not sure what I am doing wrong. Anyone know?