A compact disk rotates at 210 revolutions per minute. What is its angular speed in rad/s?
A) 11.0 rad/s
B) 22.0 rad/s
C) 45.3 rad/s
D) 69.1 rad/s
E) 660 rad/s

Question

Quizplus · Accepted Answer

To convert revolutions per minute to radians per second, use the formula: (revolutions/minute) * (2π radians/revolution) * (1 minute/60 seconds). For 210 revolutions per minute, the calculation is 210 * 2π / 60 = 22.0 rad/s.

A Compact Disk Rotates at 210 Revolutions Per Minute