A CD Has a Diameter of 12

Multiple Choice

A CD has a diameter of 12.0 cm. If the CD starts from rest and has a constant angular acceleration of 2.0 rad/sec², then the tangential acceleration of a point 3.0 cm from the center of the CD after 3.0 sec is

A) 0.40 m/s².
B) 0.25 m/s².
C) 0.10 m/s².
D) 0.06 m/s².
E) 0.03 m/s².