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习题练习：Rotational basic parameter
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 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 07cb y3.qjxgy 8.1 m (wheel A) is attached by a non-stretching belt to a wheel of radius 0.2 m (wheel8q3y j .xyg7cb 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 cbn5lzn, g1c3wr) omb/a (hz,cars all moving counterclockwise during a one lap race on an elliptical tbg ,nc)3znb/(hl5zom ar,c1 wrack.
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 b l3 bzv8izaqv 5b2e*/r;irx+celow is a snapshot of three cars all moving counterclockwise during a one lap race on ab i25abz 3v8+* vrxzcq;eri/ ln 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 belown b.r)g6p3xg)dtxy3a h 7egfgdv 6+d( is a snapshot of three cars all moving counterclockwise during a one lap race ont+6x(aggx33npd).v hg)6ybd d f7rge an elliptical 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 best represents th k/bfyp fy/ 3 (tmle6yd9*t;rwzk ,3zwe average angular speed of the hour hand on a standard clock (i,zd k*6yyprzk(m 33w/9; lwtf yfteb/ n 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 cirl) d:isl, q:cmcular track one kilometer in circumference. The first car can circle the track in 15 seconds at top speed while the second ca: ) dclqim:,slr 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 conditiczv0 wmm0vcs7*nf1 vde8)bra 8r 2o5bon must be met in order to use the rotational kinematics equcdv0 savf7 88m)bm 2 zw*ebrr0o15cnvation $\Delta\theta=w_0t+\frac{2}{1}αt^{2}$

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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 k. pnwq:z tahji*3tri)(6 d+b 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 so? All ans tahbi)zw q*ki r+.d(t6j n:p3wers 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 6qfb6 ;xhqg(f coming to rest in 2.50 s. What was the initia6q ff6 ;xb(ghql 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 a clock (j3clyg-n 6fv+ in rad/s) vn+g6-cfly j3?

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