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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: 游客未登录  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 (wheel A) is attached by a non-stretching belt -ndn 05ax9hhse z4.ax0svfv1 to a wheel of radius 0.2 m (wheel B). The belt does not slip. If wheel B turns through 1 revolution, wheel A will rotate throuh1d59s-as0v axe0 z 4.nvnxhfgh



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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 an6+ruoj 0o3y2 zi;j yr snapshot of three cars all moving counterclockwise during a one lap rac0u 3ioj2 j+nzryr;o 6ye on 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 below is a snapshot of three carsf9 4t1 otzvkhr9s jt2jrj:i;6 all moving counterclockwise kj j1z sroth;tvji9:6ft4r29 during a one lap race on an elliptical 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 thr+dd.zlca4i 0r ee cars all moving counterclockwise during a one lap race on an elliptical tc0zaidr d 4l.+rack.
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 best represzt6 ui5 bau/a,ents the average angular speed ibuu6,t a/a5z of the hour hand on a standard clock (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 track one kilometer in c3kbi9 ,+ jkgnxircumference. The first car can circle the track in 15 seconds at top speed while t jigb+,3x k9nkhe second car can circle the track in 12 seconds at top speed. How much lead does the first 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 injc kqxpv 4 ui5gq;z4/6 order to use the rotational kinematics equaijqqu4 4k5 xgp6v/c ;ztion $\Delta\theta=w_0t+\frac{2}{1}αt^{2}$

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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 i 5rum :fad)fk8dui,+ : jbor(by spinning at a constant rate of 45 rev/min. What is the average angular acceleration of the record to reach this final angular speed, having started from rest, if it takes 8 seconds to do:: )m5ruouf,fdk+aijd 8 (irb 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 o8 .)wnods 7 :kz9ooh4jtv.nurevolutions when coming to rest in 2.50 s. What was the inito9 wv 8.uno)z njd. 4otskoh:7ial angular 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 a1i84*3-ajnww ih oxua clock (in rad/s) 1hwjuwa*-oxiai n 483?

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