Grace is playing with her dolls and decides to give them a ride on a merry-go-round. She places one of them on an old record player turntable and sets the angular speed at 45.0 rpm.

(a) What is their angular speed in rad/s?
1 Correct: Your answer is correct. rad/s

(b) If the doll is 12 cm from the center of the spinning turntable platform, how fast (in m/s) is the doll moving?
2 Incorrect: Your answer is incorrect. m/s