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 carriegjlmy5r,2ijh (al 0 e,gl05(f mzgbx+s skiers a distance of 6.8 km. Th+1x-e l)sq bmle cable which moves the car is driven by a pulley with diameter 3.0 m. Assuming no slippage, how fast must the pulley rotate for the cable mb l-+xq1l)secar 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:
暂无
| 
