Question

A high-speed sander has a disk 8.00 cm in radius that rotates about its axis at a constant rate of 1100 revolutions per minute. Determine the angular speed of the disk in radians per second.

Answer 1

Just convert 1100 rpm to radians per second. The radius has nothing to do with the answer.

100 rev/min * (1 min/60 s)*(2 pi rad/rev) = ___ rad/s

Answer 2

115.19