[填空题]
Pilots can be tested f25sbw0/x;z3i 78vnisb mxos v;csl5 zor8.a:okn0ieo3dhfjlpo0x1 x + 6k k5:qdjozx2 the stresses of flying highspeed jets in a whirling “human centrifuge,” which takes 1.0 min to turn through 20 complete revolutions before reaching its final ijpdxko +3 :.2d 5h qj:lfo0nzk6x1xk0ao8 eospeed. (a) What was its angular acceleration (assumed constant), $rev/min^2$ (b) what was its final angular speed in rpm? $rpm$