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 skiers a distance of 6.8 pkhp7*u8 nat-xln : fms6e .1rz :gtkn5gv 5-okm. The cable whi/c/zr* msx+/i aybm 7ich moves the car is driven by a pulley with diameter 3.0 m. Ass msrmb+//7aicx/ *yz iuming 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
| 
Post time 2024-1-22 02:51:16