[填空题]
A 1.4-kg grindstone inuot ;d 6o .bmen/p (adwix 1qwgj..15g the shape of a uniform71 6rg;g hpynm cylinder of radius 0.20 m acquires a rotational rate of from rest over a 6.0-s interval at constant angular acceleration. Calculate the tmygpr1h;7 ng6orque delivered by the motor. $m \cdot N$