Physics Unit8: Rotational Motion (id: 4d5e5deb0)

本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 通用国际物理

[单选题]
The cutting cord on a gas-powerev8d(g68s dor :co di.dd weed cutter is 0.16 mmi tqfg l7ufa*; 1u82b in length. If the motor rotates at the rate of 20 rev/s, what is the approximate linear speedb 7ffl8g1q2i; u muta* of the end of the cord?

A. 20 m/s
B. 25 m/s
C. 35 m/s
D. 65 m/s


参考答案:  A


本题详细解析: 暂无

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