[单选题]
The cutting cord on a gasue ;i6zt6g h, ,8a a1wnhn8pxa- r t, 1q5iii hwu62g:pria/s)bpowered weed cutter is 0.16 m in length. If the motor rotates at the rate of 20 rev/s1ti:6w,qhps urgia5r /i )ib 2, what is the approximate linear speed of the end of the cord?
