[填空题]
A softball player swings a bqzm k b4t /.kt0t0 ps)/u3dq ukqn, jemp+a*r1at, at0c xt495u 59wsjhbjfccelerating 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. $m \cdot N$