[填空题]
A 1.4-kg grindstone in +gj8qif/b w0 f mb3+)xqgzau8 thnx(n -awe;; : peq)jihe shape of a uniform cylinder of radius 0.20 m acquires n(qxp-;w enja;ei:h) a rotational rate of from rest over a 6.0-s interval at constant angular acceleration. Calculate the torque delivered by the motor. $m \cdot N$