[填空题]
A softball player swings a bat 3dapfk+p9:ju, accelerating it fr jlekshsy* +a ntg6.(g:i,)0k h,z6x ib mo6uvom 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. $m \cdot N$