本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 Generic Physics
[单选题]
A cable car at a ski resort carries skierzyk3qb(ge. l xl353vc h apc qrmi21o9l-e*7s s a distance of 6.8 km. The cable which moves the car is driven by a pullcpr9 le2saho-i 1* m7qey 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:
暂无
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Post time 2024-1-22 02:51:16