本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 通用国际物理
[单选题]
A cable car at a ski resort carries skiers2 x1*omkufw mh;coh2bi) / zg6 a distance of 6.8 km. T (6wrvq2i*gqudv;4 fhhe cable which moves the car is drive2vw q u4*dh i6g(v;qrfn by a pulley with diameter 3.0 m. Assuming no slippage, how fast must the pulley rotate for the cable car to make the trip in 12 minutes?
A. $9.4 \; rpm$
B. $30 \; rpm$
C. $60 \; rpm$
D. $720 \; rpm$
参考答案: C
本题详细解析:
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