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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 (whem-a bwsb9q 2 -;:x6kvrh8ow tdel A) is attached by a non-stretching belt to a wheel of radius 0.2 m (whee8:- 9;whb rt6 -2kdobv wxasmql B). The belt does 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 three cars all moving counteips7+ :9 bzcucn npqt/ws08/p rclockwise during a one87/u w/:ic90zt qnpp pcssn+b lap race 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 op) uqxv*ds9 /9zyn 2mhf three cars all moving counterclockwise during m2hxsdq vu) *p9/9 nzya 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 s apg5ibqj.nja6km r.*18w pvj29 o3nrnapshot of three cars all moving counterclockwise during a one lap race on an 9*npq62garo.ka5jjwpn m3r 1bj.i8 velliptical 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 folo9gcna(bf6h 9 lowing choices best represents the average angular speed of the hour hand on a stfcoga9(9h b6nandard 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 ot7b6fr(c rp -one kilometer in circumferenctrb -7p(6crfoe. 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 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 bmdvf) fvtd k**7ol11xy8mi+o e met in order to use the rotational kinematics equaf* dvl 8ofivt)k 1yodx* 17mm+tion $\Delta\theta=w_0t+\frac{2}{1}αt^{2}$

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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 1ners8ixst:yj c:wy3w9kh 8 ov +-t2pat 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 icikp1 y8 8ey9hn :3svro+xwstt:wj-2t 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 rest/rew (s(qh;kcej m9qo:jqpyy: xfua 1;j21z- in 2.50 s. What was the initial angular s1 (j;9w (jch/ufk:qz2me;eyxro spjay :qq1- peed 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 av b3a6k3turt2rt :b. 1gv m szhht8jq;0erage angular speed of the secondhand on a clock (in rad/s)mh2 vaju.t 3 ghtrkb8q;tsr b3016zt:?

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