[填空题]
A softball player sweto9 syo nkt 1/o(p+f4ings a bat, accelerating it from reshq6 crg0: u,/ x (ul+8t9 k9refglwvgxt 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. $m \cdot N$