Two children, Omar and Melinda, ride on the same merry-go-round. Omar is a distance R from the axis of rotation; Melinda is a distance 2R from the axis.
1) What is the ratio of Omar's angular speed to Melinda's angular speed?
2) What is the ratio of Omar's linear speed to Melinda's linear speed?
3) What is the ratio of Omar's centripetal acceleration to Melinda's centripetal acceleration?