[填空题]
A 1.4-kg grindstone in the shape of a uniform cylinder or3o6a,ou: vmdf jm 6/ jm kz-xwrxq7h:3radius 0.20 m acquires a rotational rate of from rest over a 6.0-s interval at constant angular acceleration. Calculate the torqumq/6 xjhz:xk7- mr j3we delivered by the motor. $m \cdot N$