[填空题]
A softball player swingsy p5dd7c n;4 d9ay2bejp,nibsgfq 69 ) a bat, accelerating it fr 6z*)jp9-tn) drvelkm om 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. $m \cdot N$