[填空题]
A 1.4-kg grindstone in the shape of a uniform cylinder of r.zt hsrj8g k;( 2)bclecyx7y/ada7w*lhz9lq7o ius 0.20 m acquires a rotational rate of from rest over a 6.0-s interval at constant angular acceleration. Calculate the torque deliverel whl7*q9 o7azd by the motor. $m \cdot N$