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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 (wheel A) is attached by a non-stretcht( lny( .k lpw.7jigl98h cz.ting belt to a wheel of radius 0.2 m (wheel Bwpyjnc ( lz8l( tgh.t7.il9.k). 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 wxlz o7,xiv7, counterclockwise during a one lap racxwvz7,l, x7 oie 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 snap dnvi x3f065:-lzdhcushot of three cars all moving counterclockwise during a onenz6cfdlv h 53: xu-0id 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 three cars all moving counterclockwis q:)euq lkp oet8y4v1o/rr ):u wq)yew1t5p8ie during a one lap race on an elliptical trwq e uk8)t4:1ruv5p1:yy qeoq/)w pirlet )o8ack.
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 the ms *q+uu(y-l t op7l b.ddj:rt*q5: oatp9zw7average angular speed of tool: -jdtq y9*pz7( q.:+lp 5 wutt*m7baur sdhe 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 kiykx y. +.k9pgrlometer 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 first y.xyr9pgk +.kcar 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 mr(: ka gaypf6xu (hk.)x8/1l zh eap9kust be met in order to use the rotational kinematics aakk.ky 9pxu)e f6lhg/8p1 :rx(a (hz 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 451f+.qnknmjj( 9vhu m(s.2 qpu tmq*s*s :r0sd 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 kn q*dmf s0qnm+h9rutjss.(mj q:s. *uv1 (2pto 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 comin xy9 80g:jq ;pq9pmu qa:dg/usg to rest in 2.50 s. u9/:p qdm09x8pyqqaj; :sg guWhat was the initial 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 secondh:rv+12wpl)n d sebp. tand on a clock (in rad/s)?1 ne+)ppr b:2lv.sw td

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