[填空题]
A softball player swings a bat, acceleratinf; ah.xpuu u8-w e:w.yg it p 6pynh:x:wcuys /8; +3z9 eti (laiwmfrom rest to 3 $rev/s$ in a time of 0.20 s. Approximate the bat as a 2.2-kg uniform rod of length 0.95 m, and compute the torque the player applies to one end of it. $m \cdot N$