[填空题]
A softball player swings a bat,b f 3r wxnu(akzsjr30 d+n0*bdr/p )3e accelerfpn4b;5kzc 6+l: kh ecating 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. $m \cdot N$