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习题练习:Rotational basic parameter



 作者: admin发布日期: 2024-08-13 17:43   总分: 10分  得分: _____________

答题人: 匿名未登录  开始时间: 24年08月07日 16:00  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.11: A wheel of radius 0.1 m f 3spq1.yvikjym+ 0 p75psn1 f(wheel A) is attached by a non-stretching belt to a wheel of radius 0.2 m (wheel B). The belt d31pyk 1ssqip+7mvff py5n 0j.oes not slip. If wheel B turns through 1 revolution, wheel A will rotate through



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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.01: The diagram below is a snapshot of thrt 9sk l-8bl.sdee cars all moving counterclockwise during a one lap race ktl lsd-.b9s8on an elliptical track.
Which car has had the lowest average speed during the race so far?



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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.02: The diagram belo5f(0eaj d.z m/y5t/vt vpzq:dw is a snapshot of three cars all moving counterclockwise during a one lap race on an ellip.d m0: qd/zvttvz/f eaj yp(55tical track.
Which car at the moment of the snapshot MUST have a net force acting on it?



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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.03: The diagram below is a snapshot of threu q1op hgc-u1k (lerfn53/ mu+e cars all moving counterclockwise during a one lap race on an elliptical11h 3m(kfquu5rpn go+ /c-leu track.
Which car can finish the race without changing its present momentum?


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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.25: Which one of the following choices brt rcz3 j,5z;qest represents the average angular speed of the hour hand on a standard clocz;r5 , qzjc3rtk (in units of rad/s)?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.40: Suppose two cars are racing on a circular trackvg5k2us m1,j6g k+50vw j 7vp srtqm3f one kilometer in circumference. The first car can circle the track in 15 seconds at top speed while the second car can circle the track in 12 seconds at top speed. How much lead does the vv572jfpskkg1j,rqg5mu mv 3t +6s 0 wfirst car need starting the last lap of the race not to lose?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.16: What condition must be met in order to use //i/c; m nkp a.dhzg,xthe rotational kinematicsaig ;/ .hnp c,d/xz/km equation $\Delta\theta=w_0t+\frac{2}{1}αt^{2}$

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.32: A turntable plays a record by spinning at a constant rate of 45 rev/mf-krdn:k q,y u(qd4:qdl j4e+in. What is thd kl-fq4,dyeq q::r+nd (4jk ue average angular acceleration of the record to reach this final angular speed, having started from rest, if it takes 8 seconds to do so? All answers are in units of rad/s2.

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.18: A disk of radius 75.0 cm makes 3.5 revolutions when coming to 43l6bxa;la ,*5myk3avd ee sjrest in 2.50 s. What was the initial as da,k*evlb354jalexa 36 ;myngular speed of the disk?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.12: What is the average angular speed of the secondhand on a clock (ins9on*-8 pjlw d rad/s)swjo *8n9-pdl ?

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