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习题练习:Physics Bowl by Topic 2: Kinematics - part I General Motion

 作者: admin   总分: 72分  得分: _____________

答题人: 游客未登录  开始时间: 24年03月31日 09:50  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  
  10.10: A particle travels at a constant speed around a xu/1pkxdo)j4circular path of radius $R$, if the particle makes one complete trip around the entire circle, what is the magnitude of the displacement for this trip?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.01: The change of distance per unit time without reference tdgzs ;28h.bu ff n2m/eo a particular directio.bffgh n e8; s2/2uzmdn is called

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.29: A vehicle completes one lap ;hs6cjljggws3) 9 inz6uef*yw;c /h) around a circular track at an average speed of 50 m/sgsflj)ciu6n *h6hw ; 3 jes;)c 9/yzgw and then completes a second lap at an average speed of $V$. The average speed of the vehicle for the completion of both laps was 80 m/s. What was the average speed $V$ of the second lap?

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.03: A toy car moves 0.80 m in 1.0 s at the constant veloci7lbj hluw (wxgz-q -,m.i5m8xty. If it continues, how far will it travel imq ihgm,8 7ulw-lzxj- 5(.bxwn 3.0 s?

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.34: A 40-kg boy is stationary on a 30-kg plank tha-ry/h6yd pw,jt is sliding at 5.00 m/s to the right across a frictionless ponhrd/ywyj,6 - pd. The boy then turns and starts walking on the plank at a rate of 4.00 m/s to the left, relative to the plank. What is the speed of the plank relative to the pond now?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.18: A motorist travels 400 km at 80 km/h and 400 km at 100 32c ;o9s hr tar87ilx9 ,xxssikm/h. What is the average speed of the motox3srl9x i9 ssi,t2x hc oa8r7;rist on this trip?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.20: This question refers to the moti.y+g 4l8+epqgwa uql1f-t x2e on of a toy car traveling along the x-axis. The graph 2ew1+- t. qlu4+yaflgqxpge 8shown below is a plot of the car’s velocity in the x direction, $v_x$ versus time $t$.
During what time interval was the car moving towards its initial position at constant velocity?


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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.21: This question refers to the motion o1n 2r4n y6cyt vwmnq.97l(u)bg lq)wpf a toy car traveling along the x-axis. The graph shown below is a plot of the car’s velocity in the x direc2 g(mtuqpl w7w6q lyn1.r)y9 vbn4n)ction, $v_x$ versus time $t$.What was the acceleration at 33 s?


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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.22: This question refers to the motion of 1a+,h 4:vbckex h o/ynnq.r3w a toy car traveling along the x-axis. The graph shown below is a plot of the car’s velocity in the x direction, o :aq,h+ /xnvrw .n1cb4yek 3h$v_x$ versus time $t$.
How far did the car travel during the first 15 seconds?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.15: Given the graph of the velocity vs. time of a dua8cs0oziw-fc a-y2g.cyj 5 0yck flying due south for the winter. At what poinca0 -fz58gic c yjao-y. 2sy0wt did the duck stop its forward motion?





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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.17: This question refer to thn9f0)bapqv842d 9hc +lkad t te diagram below which shows the position and elapsed time of a car starting from rest and uniformly accelerating in a straight line. What wa v9na k d qlc9b0h8)t2pt+fd4as the average velocity of the car during the third second?


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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.18: This question refer to the diagram below which shows szr4g -oelid(66bw 9c the position and elapsed time of a car starting from rest and uniformly accelerating in a straight line. The averagis cr 9blge466w-(zod e acceleration during the entire 3 second interval is closest to


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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.20: What is the shape of the velocitg0m x4alu0jg. a998o bqltg8 yy time graph for an object with the position time graph9gq8u98 a my oxblgt aj.l4g00 shown in the diagram at right?


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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.28: The followingg 7az3 ,if0p;ugn* iib question refer to the following information. An ideal elastic rubber ball is dropped from a height of about 2 meters, hits the floor and rebounds to its ori;i*aguf i307pn b,z giginal height.
Which of the following graphs would best represent the distance above the floor versus time for the above bouncing ball?


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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.29: The following question refer to the foly xrfnb-o9 paq)n.)c6 8(jqqs lowing information. An ideal elastic rubber ball yn.foqp)c6ba j)9qnq s8r -x (is dropped from a height of about 2 meters, hits the floor and rebounds to its original height.
Which of the following would best represent acceleration versus time for the bouncing ball?


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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.39: If a boat can travel with a spee2q*h q q8sc/hld of $v$ in still water, which of the following trips will take the least amount of time.

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.01: The question refers to the following scenario: A*+ cy h)nhgy2ubl;m (xt $t_0$, two cars moving along a highway are side-by-side as they pass a third car stopped on the side of the road. At this moment the driver of the first car steps on the brakes while the driver of the stopped car begins to accelerate. The diagram below show the positions of each car for the next 5 seconds.
During which time interval would cars #2 and #3 be moving at the same average speed?


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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.02: The question refers to the fko5e1z +ss 9xn5mvm *hollowing scenario: At $t_0$, two cars moving along a highway are side-by-side as they pass a third car stopped on the side of the road. At this moment the driver of the first car steps on the brakes while the driver of the stopped car begins to accelerate. The diagram below show the positions of each car for the next 5 seconds.
About what position after $t_0$ would car #1 and car #2 have been side by side?


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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.03: The question refers to the following scenario:bpzql 2*8f1 ke At $t_0$, two cars moving along a highway are side-by-side as they pass a third car stopped on the side of the road. At this moment the driver of the first car steps on the brakes while the driver of the stopped car begins to accelerate. The diagram below show the positions of each car for the next 5 seconds.
Which of the three cars had the greatest average speed during these 5 seconds?


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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.04: The question refers to the followin.r+ti +x 3i lgw9b6ndug scenario: At $t_0$, two cars moving along a highway are side-by-side as they pass a third car stopped on the side of the road. At this moment the driver of the first car steps on the brakes while the driver of the stopped car begins to accelerate. The diagram below show the positions of each car for the next 5 seconds.
If car #3 continues to constantly accelerate at the same rate what will be its position at the end of 6 seconds?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.33: A small ball rolls down a ramp, across a horizontal table top agiqef*gc73k x-j bs5:nd off the table edge. Which of the foki- *5js3 xfc7bq gge:llowing would best represent a graph of the magnitude of the ball's acceleration vs time?


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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.01: The graph represents ezx) i;krl97hthe relationship between distance and time for an object that is moving along a straight line. What is the insex;l) h7rizk9 tantaneous speed of the object at t = 5.0 seconds?


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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.02: The graph represbz9ze9 ay 2u6mk-r o2zents the relationship between distance and time for an object that is moving along a stz r2 mb9uy-o92zak 6ezraight line. Between what times did the object have a non-zero acceleration?


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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.07: A small object is thrown straight downward on Earth with an inheda p*0g*.:d-px6h0mbdf esitial speed of6 .ehdh adm0x*e*gf0b d-p: sp 12.0 m/s from a position 10.0 m above the ground. Ignoring air resistance, the speed of the object when it reaches the ground is

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.11: The diagram below represents a toy ze-8x 2xz79,ys6j uu6ap sq cpcar starting from rest and uniformly accelerating across the floor. The time and d6jzaepcu2s8q6,-s 9ux7 pyxzistance traveled from the start are shown in the diagram.
What was the average speed of the cart between 0.1 seconds and 0.3 seconds?


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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.12: The diagram below represents a toy car start ggcxyjf, x5a+jv ;/n:ing from rest and uniformly accelerating across the floor. The time and distance traveled from t,:x; xg+n5a vcjg /jyfhe start are shown in the diagram.
What was the acceleration of the cart during the first 0.4 seconds?


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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.13: The diagram below represents pd49i/y g.:f v wjunn7a toy car starting from rest and uniformly accelerating across the floor. The time and distance traveledgv pnf:9iwyduj /4.n7 from the start are shown in the diagram.
What was the instantaneous velocity of the cart at 96 centimeters from the start?


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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.08: The diagram showsz r2)h z cy54y*v6g/xkxibr8i a uniformly accelerating ball. The position of the ball each sv b* iyg/4zxhxr62 8czkyi 5r)econd is indicated.
What is the average speed of the ball between 3 and 4 seconds?


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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.09: The diagram shows a uniformly acc*quft9 yy w;8delerating ball. The position of the ball each sqfu8;y*dw yt9 econd is indicated.
Which of the following is closest to the acceleration of the ball?


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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.17: The motion of a circus clown on a unicycle m31 c9fgjk+:l9zufapmoving in a straight line is shown in the grapg ffj91a+zum cp lk93:h below.
What would be the acceleration of the clown at 5 s?


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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.18: The motion of a circus clown on a unicycle wacw g7s)zxgw,w4np-) gn+ y9 moving in a straight line is shown zw)-wa7xw 9n)yc, s4+p gggwnin the graph below.
After 12 seconds, how far is the clown from her original starting point?


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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.04: When an object falls freely in a vg fh2s0ri2v*z(:+ltwu zc2pt acuum near the surface of the earth

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.11: The accompanying graph describes the motion of a marble on a table top z7fkq59 u+4 :zmpy nko;7chq*bep yxv pr*5+ hfor 10 seconds. For which time interval(s) did the marble have a negative v+55k4;cyzmy 7kpe7uvh*: fr nqx9opbp+* hzqelocity?


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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.12: The accompanying graph describes the motion of a marble +rv s.ry4,h qbon a table top for 10 seconds. For which time interval(s) did the marble have a positive acceleravy,qh r b.4+srtion?


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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.13: The accompanying graph descrir8e87r hdd5o ebes the motion of a marble on a table top for 10 seconds. What is the marbles average acceleration between t = 3.3 s and t = 3.8 s 5dr8re7 hod 8e


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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.20: A car accelerates uniformly from rest for a lppt:07)tufe time of $2.00\;s$ through a distance of $4.00\;m$. What was the acceleration of the car?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.06: An object, thrown straight downwardc89suckl/fm / with a speed of $20.0\;m/s$, takes $2.00\;s$ to reach the ground below. From what height above the ground was the object thrown? Ignore air resistance.

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.03: Which of the following graphs could correctly represent the moxz::bzovm 2 b)tion of an object moving with a constant speed in: zmbzo2 :b)vx a straight line?


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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.24:The accompanying grfz*x nu9wuzq,r01o22 l 7ad+ tn33en z y;azzcaph describes the motion of a toy car across the floor for 10 seconds. What is the acceleration of the toy car at t2q3 zzn2l ; zzuf17cw3o,un9+ a rn* day0xetz = 4 s?


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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.25:The accompanying graph describes the motion of a toy car across th.ofmqmh6 t;)q yp)tf /e floor for 10 seconds. What was the total displacement of the toy car for the entire /6fpt. )yomf) hqmq;t10 second interval shown?


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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.26:The accompanying go- uttzukte42. m3 a8zraph describes the motion of a toy car across the floor for 10 seconds. At what times or timzu8.423ez-m ttutkao e intervals must the net force on the toy car be zero?


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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.03: A car accelerates uniformly from 0 km/hr to 60 km/hr in 4.50 s. Whi(o), bs:e)odgvk kh-b;q1is hch one of the following choices best res,ibv:1 hh)kekoob ()dgq; -spresents the acceleration of the car?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.07: A car has the velocity versus time cur yql/ka-.pqigb +y9: rve shown. Which of the following statements regarding its motion is NOT l.qi-9 gy/ :kay+ rpqbCORRECT?


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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.17: A toy car moves along the x-axis according to the velocity veb9j98tptyi) y 6t4hq xjv 8ec+rsus time curve shown 9vtjt p8+y c 4x98q)jei6ythbto the right. When does the car have zero acceleration?


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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.22: During an interval of time, a tennis ball is moved so that the angle ta9ekmw5u (wupyy upd 86g)m c*95wa 6between the velocity and the acceleration of the ball is kept at a constant 120 degree. Which statement is true about the tennis ball during this interval689myw6 ()*p dwaagpu tukcu9 ewy55m of time?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.03: Two automobiles are 150 kilometers apart and traveling toward each *l2t 6xj jhuv4dg5(u vother.vt2 jxj5vhldu(*4 6ug
is moving at 60 km/h and the other is moving at 40 km/h. In how many hours will they meet?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.04: A particle moves r(ji2)(c9hrdxc aw3ohp1/ et on the x-axis. When the acceleration is positive and increasin/tj32 hwr( hrc9xpd ao)eci1 (g

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.12: The definition of nkk h)j)bqrtq8j:q zq3t+)cj)k .sr .average velocity is

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.18: For any motion in ta q iof 3kv3s5iie:1a2wo dimensions, which one of the following choices identifies quantities that must have thi 2oi3k i5sae31afq: ve same direction?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.17: A toy car moveseldes 4-v0bs- $3.0\;m$ to the North in 1 second. The car then moves at $9.0\;m/s$ due South for 2 seconds. What is the average speed of the car for this three second trip?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.05: The position-tim,t jq f8xi3v h0,rv2xae, $y\;vs\;t$, graph for the motion of an object is shown. What would be a reasonable equation for the acceleration that would account for this motion?


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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.31: A car moves to the right along a one-dimensional tracu 8:e 6yx.ophd+ef4jgpr73ax.rq j8lk for total time T in two part. fe .:hqyxrulg8 64ojxj8 pp+a7dr3 es.
• Part One: The car maintains constant non-zero speed V for the first $\frac{3}{4}$ of the total time.
• Part Two: The car accelerates uniformly to rest during the last $\frac{1}{4}$ of the total time.
What is the ratio of the distance traveled during Part One of the trip to the distance traveled during Part Two of the trip?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.23: The velocity vs:p c+ mdobx;cae s8v6(. time graph for the motion of a car on a straight track is shown in the diagram. The thick line represents the ve ab mdx;:(scovp+8 ec6locity. Assume that the car starts at origin $x=0$. At which time is the car the greatest distance from the origin?


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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.24: The velocity vs. time graph for the motion oor*l)pqvj d 2 ,g )d)rsqnk.q.f a car on a straight track is shown in the diagram. The thick lqrp)v qln.s ,d) j.2r*ogk)dqine represents the velocity. Assume that the car starts at origin $x=0$. What is the average speed of the car for the 10 second interval?


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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.08: Consider the motion of an object given by the position vs. time graph sh/.jyceh9mxy9p5 8ze b own. For what time(s) is the speed of the objectyec8h / zxmp 95e9b.yj greatest?


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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.11: Consider the motion of an object give9 g7 :uqxxkhkopf5w4.lnv 0 t8n by the velocity vs. time graph shown. For which time(s) is the acceleration of the object equal to pw f0lxkqo74ghut 8v .nk x:590?


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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.24: By computing the area under the acceleration vs. time /mw, akea4rh8 graph for a fixed time interval of an objwkh4ar,m8 /aeect’s motion, what quantity has been determined for that object?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  11.08: An object moves along a horizontal line with incr(y0pyu y/xce,easing speed.
choices could represent the signs of the velocity and of the acceleration for the object to achieve this motion?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  11.14: A car makes a trip 6h6c l+iyee n:di3j4yn)nm1h in two parts:
Part 1: it travels a distance of 800 m at a constant speed of 4.0 m/s.
Part 2: it travels a distance of 1200 m at a constant speed of 20.0 m/s.
What is the average speed of the car for the entire two-part trip?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.02:A small object is released from rest and reaches the ground in 3t:3r baa zvoz93nqqr+xq(w+:j n9twa time of $2.50\;s$. Neglect air resistance. With what speed does the object reach the ground?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.03:A small object is released frii8(/j( b;gu cgibh1som rest and reaches the ground in a time of $2.50\;s$. Neglect air resistance. From what height above the ground was the object released?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.17: A position vs. time graph of a particle i(x9vz xy/zt6 nbf5*r2m,bf sws.h4g moving along a horizontal axis is shown. What is the total distance traveled by the particle from t=0 5r9x( bh. 2*4zs, tybz6i fsfvxw/gmnto t=10s ?


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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.18: Which one of the fi yh9/j zf+kkv5d5r- hollowing choices correctly identifies all of the listed situations for which t/ k5hjd f-v+hzkyi9r5 here is a non-zero acceleration?
Situation I : A point object moves in a straight line with increasing speed.
Situation II : A point object moves in a circular path with constant speed.
Situation III: A point objects moves in a circular path with decreasing speed.

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.32: An acceleration vs. time graph for an object moving along ad6rhg e89aiudx(h g+9 line is shown. The object starts from rest at time dgag69r+uxih(8h e9 dt=0 s. At what time(s) does the object attain a maximum displacement from its starting position?


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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.17: An object starts at the origin and its velocg4n* h.-ru mlnet17ymity along a line vs. time is graphed. Which one of the following choices best gives the proper interval(s) of time for which t*yh mn umg1n4l- .rte7he object is moving away from the origin?


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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.09: Two cars are moving to the right on a horizontal track, each with cons-qyj(/m3sa dutant acceleration. At an instant of sqyd umja/3(-time, the information about the cars is shown:
Car #1: position = 125.0 m; velocity = 13.0 m/s; constant acceleration = $1.5\;m/s^2$
Car #2: position = 80.0 m; velocity = 9.30 m/s; constant acceleration = $5.5\;m/s^2$
During the next 1.0 second of motion, which one of the following choices best represents what happens to the distance between the cars?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.14: A particle has a position:3 +4auhzrw 3bcclsb4 rvm1g * $x$, as a function of time $t$, given as $x(t) = -15 - 25t + 10t^2$. Which one of the following choices represents the magnitude of the particle’s acceleration? All quantities are expressed in base SI units.

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.41: For the entire time shown p6oq.uy ixq2p i7iw9.6aq kgiwx+ - 8vin the graph, which one of the following choices correctly describes the relationship between the ax8xky.7 +pi-a v96i qwup ii26qg.qowverage speed of the truck to that of the car?


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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.42: Which one of the following choices best describes the instants of time, k rl*gw (e( ,8/ pgzouifoxm*,r2mkx )lb ay76at which the car and truck travel with the same speed?(r*6ge,lo,kb 87g(kum/mfxo i wxrp a)l2y * z

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.30: Two cars P and Q, each sfst/ad1fv* x h )k9,6z9wdo eetart from rest at the origin and will move along the x-axis. The acceleration vs. time graph for each car is shown. Which one of the followingf1 de9ts,*eow vkdhf/x z a96) choices correctly identifies the relationship for both the speeds $v$ and the positions $x$ of the cars at time T?


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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.02: The position vs. time graph of an object moving o8o f8 g31pve0pm):g1jf;tg d 4oyy4bmhsvr1r n a horizontal line is shown. At what time(s) is thedegp84ygg1v jrot38r ;f)m yo0p 11m h:bf s4v object moving with its greatest speed?


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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.08: A mass moves along the x-axis following the position vs. time6ciq+ fp .hk*u graph provided. During what time interval(s) does the mass have zero acceleratihf ic+ u.kq6*pon?


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