[填空题]
Pilots can be tested for the stresses of flying highspeec7 f m:v -s;;afiomu(md jets 9 jki0ywt*h* din a whirling “human centrifuge,” whicw*9d 0khj ity*h takes 1.0 min to turn through 20 complete revolutions before reaching its final speed.
(a) What was its angular acceleration (assumed constant), $rev/min^2$
(b) what was its final angular speed in rpm? $rpm$
