A CD Has a Diameter of 12

Multiple Choice

A CD has a diameter of 12.0 cm. If the CD is rotating at a constant angular speed of 20 radians per second, then the linear speed of a point on the circumference is

A) 2.0 m/s.
B) 1.9 m/s.
C) 1.5 m/s.
D) 1.2 m/s.
E) 1.0 m/s.