The blades of a fan rotate clockwise at −225 rad/s at medium speed, and −355 rad/s at high speed. If it takes 3.05 seconds to get from medium to high speed, what is the average angular acceleration of the fan blades during this time? Is the answer -(355-225)/3.05 = 42.6 rad/s^2 Please work it out and tell me if I did this correctly
Hi Ion1776! (try using the X^{2} tag just above the Reply box ) Yup, that's fine! … (apart from the sign) the usual constant acceleration equations apply to angular distance speed and acceleration just as they do to linear distance speed and acceleration … in this case, you can (and did) use v - u = at.