[填空题]
A 1.4-kg grindstone in the shape of a uniform7zj dz, f.ii 41zwvfao s1bip.a.;6qt cylinder of radius 0.20 m acquirew jslg q7tex()05dh;os a rotational rate of from rest over a 6e (xs wq;h7odj5l0t) g.0-s interval at constant angular acceleration. Calculate the torque delivered by the motor. $m \cdot N$