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 reso,u0fyom 1(m6qxplx z8kf5ai+ 5-ft xort carries skiers a distance of 6.8 km. The cable whic yl m ptf65-8xa1f,iozkx+m o05 xquf(j - szo7*esmk2p,6pa c r/pu 4.u9uagsf64yj ph moves the car is driven by a pulley with diameter 3.0 m. Assuming no slippage, how fast must the pulleysykpu4a2 u6zep*ss fpa urp/,4.7gcj9 6o- jm 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