[填空题]
A 1.4-kg grindstone in the shape of a uniform cylinder of radius 0.20 m acquir*m2+jz:ol1 5 giccdb1-z ah dleiji ah)b1/8,djai ,w ds a rotational rate of from rj b)ai1i jdwi8h/d,a, est over a 6.0-s interval at constant angular acceleration. Calculate the torque delivered by the motor. $m \cdot N$