[填空题]
A softball player swings a bat, accelera: nqdo)f;yh3p thuzhs5 /qr,2p /u iuis iu;j/ylk4s,3ing it from 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. $m \cdot N$