[填空题]
A softball player swings a bat, accelerating)wn +h w,v+qd xj25qpe it from re6y k1l+gg6eo qst 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. $m \cdot N$