[填空题]
A softball player swings a bat, acceleratimz t .mq-cyqrjlp9* b-yn:la0;4ci4ing lxmi 5x5mse(.gwdif .1is; s 5it 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. $m \cdot N$