[填空题]
A softball player swings a bal x (;eut;y9c+sp a6ekt, accelerating it from rest to 3 vdu3b(k c .:em(tp,uf $rev/s$ 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. $m \cdot N$