[填空题]
A 1.4-kg grindstone in thsqvby// 31 zzje shape of a uniform cylinder of radius 0.20 m a,me -g/l nh0bjcquires a rotational rate of from rest over a 6.0-s interval at consta mlb/-0ngjeh, nt angular acceleration. Calculate the torque delivered by the motor. $m \cdot N$