Kaytee9757go Kaytee9757go Physics Answered If a cd spins at 500 revolutions per minute (rpm) and a cd has a diameter of 12 cm. What is the centripetal acceleration on the very edge of the cd? at what radius on the cd would the acceleration be equal to 35 m/s2? ans: 164. 49 m/s2; 1. 28 cm