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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 cirmxb3n 6; 7shppcular 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 wiv.x wdl5pbp/.e,laos p 003 yrthout reference to a particular direxl olrs 0pwe,.d30 y./b5 appvction 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 around a circulc *um ;2ozagz8ar track at an average speed of 50 m/s and then completesam;2g*z8o zuc 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 veulritpc7,0g - locity. If it continues, how far will it travel in 3.c gi tul7-0,pr0 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 that is slidij(a;8bjl , vdpsf,: hsng at 5.00 m/s to the right across a ,fhs( ;lsa j ,jb8vdp:frictionless pond. 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 km/h. W2i g mfqln0ixfj6n6.9:x0f jnhat is the average speed of the motorist on th0n nl ig6jjxq0f96mx fn 2:.fiis 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 motion of a toy calwjb()3 rjna8xg:z *c r traveling along the x-axis. The graph shown r ln3 g (c)*aj8zbwxj: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 of a toy car travel yhid(yp;e;kns i*:3 +b m3jocing along the x-axis. The 3;p;yi*o 3eh nc+(ijkdbm:ys graph shown below is a plot of the car’s velocity in the x direction, $v_x$ 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 mo. d y*1wbfython+h07dtion of a toy car traveling along the x-axis. The graph shown below is a plot 7d hyt*dn1.b +ow0yf hof the car’s velocity in the x direction, $v_x$ 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. ti-( 7len jsi5- v bqke8axfg1:tme of a duck flying due south for the winter. f: jel8gne- b5astq -iv 1(x7kAt what point 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 the diagram below which shows the positiobc+w9pqho vim ,zc)91n and elapsed time of a car starting from rest and uniformly accelerating in a straight line. What was the a+wzvhc9 p )o9cq1b,m iverage 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 sh dv ,95clrk*yuows the position and elapsed time of a car starting from rest and uniformly accele9 5*dlkruyvc, rating in a straight line. The average 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 thmow2:;l tx j+xh.8 ys9nddu2 ke velocity time graph for an object with the position time grapx82solx+:djy;tnk 92w .uhm dh 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 following question refer to the following informatioos3-0bx)h(r bpky,: lti* sian. An ideal elastic rubber ball is dropped from a height of about 2 meters, hits t(st,s-y*h0l ) apbb 3o irxk:ihe floor and rebounds to its original 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 following iyg .2gn/tq;szh )fps.nformation. An ideal elastic rubber ball is dropped from a height of about 2 meters, hits the floor and rebounds to its nsg .z s)ftyq.p/2 ;hgoriginal 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 w7e (7ulg:m zekith a speed 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 sce dh kt0t (,fqpye/l-1ht:2etinario: 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.
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 following scenario: x61gv j(9 b o8hju6rg27 atspdAt $t_0$, 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 ;5ueth.ocdcbu d4 8i: to the following 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.
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 fo 8*;hgifk5 l: ycoytj-llowing 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 and owrq;b0n r nn;6ff the table edge. Which of the followin; nbwr6nrqn 0;g 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 repreq6xf*vfy+c cde2 xu sg -s4o);sents the relationship between distance and time for an object that is moving along a straight line. What is the instantaneous speed of the object at t = 5.0 ses;c+4xqfe)sgydfx26v o- uc *conds?


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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 represents the relation0 jpgk +4n*pb:pngnopd3z p. :n+i yq.ship between distance and time for an object that is moving along a straight line. Between what times did the object have a:p zngb . .g np+0kpy+onijn4p3p:d q* 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 init l(2sv,1bqsbrj czk +7vc,8j+zz t/egial speed of 12.0 m/s from a position 10.0 m above the ground. Ignoring air 8ksc lzvzj jez c+7/g v(q+s1 ,2rbb,tresistance, 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 am8w5l 2 2z1uyte z5tjy toy car starting from rest and uniformly accelerati 25yjl z12ut 8eyzwt5mng across the floor. The time and distance 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 starting from rest and utg;q/ ypfm8qd+ bp2q-niformly accelerating across the floor. The time and distance traveled fro8+tf -bq/qgp;pdy2m qm the 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 a o8hl).* rxy;h,xar3f k9h pdltoy car starting from rest and uniformly accelerating across the floor. Thk; hlrhy fh)l*9pa d8 xx.3r,oe time and distance traveled 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 shows a-hqai7v l5 qu;ec1e3g uniformly accelerating ball. The position of the ball each secq q;31cle-5 uvha e7igond 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 accelera; 3mxsv; widhbwa55u9g3 9fsl ting ball. The position of the ball each second 9fsba hl5udmi 59s; wx3w3;gvis 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 movi )krl;x*q11-j*lkoze m7wks )/td zk ang in a straight line is shown in the graph below. 1ktk x-1som7l*dazkew)lz/ ;jqk) *r
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 moving in a strai fmsfu/n2sst7;qjh0q (fur* o dq*u,4ght line is shown in the gra ( fun/ufds s*2 4qofmt,sju* 0qh;r7qph 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 ddd(nyz w/8 r,in a vacuum 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 mae eqlb+-lvk,1n 7p it8rble on a table top for 10 seconds. For wk 1pb+8t niv,e-l eql7hich time interval(s) did the marble have a negative velocity?


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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.12: The accompany8gxe(q0chl c)k ;vjgxt* u16ping graph describes the motion of a marble on a table top for 10 seconds. F10qxc u(k8ept ;xchg)*ljg 6 vor which time interval(s) did the marble have a positive acceleration?


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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 describj/lju 2ew p,hz9)tou +es the motion of a marble on a table top for 10 seconds. What is the marbles average acceleration between t = 3.3 lt2 jup,wh)u9+j e/ozs and t = 3.8 s


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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 accelerat j4 7dq-8z4ov2v+p2pcvdfup ues uniformly from rest for a 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 downward witpal70*4viruj ez4hfwd) 5zd9h 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 gr7w(b /q.kjo j47cvn,mdzgot 4 aphs could correctly represent the motion of an object moving with a cogvkc no.,j(4 /qmdjz77o4btw nstant speed in 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 graph describes the motion of a toy car across the flo yu+z63smrm;jor for 10 seconds. What ij+;m r36zm suys the acceleration of the toy car at t = 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 dm 34wx8*ettxmq +sf/e escribes the motion of a toy car across the floor for 10 seconds. What was the total displacement of the toy c s/*ex4q+8x twmmt ef3ar for the entire 10 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 pw .e)h6i-vf jgraph describes the motion of a toy car across the floor for 10 seconds. At what times or time int-).j 6hepwfiv ervals 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 unifou velhcm -*/3xmhrr,dbi;: 3srmly from 0 km/hr to 60 km/hr in 4.50 s. Which one of the following choices best represents the acru :ms hxe 3b/ d-l3;rv*mchi,celeration 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 ve;zvlx(.mis 0jd f )3dsrsus time curve shown. Which of the following statements regarding its motio( ifjl;ms)ds3d vz0.x n is NOT CORRECT?


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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 velorenx8g i4e7 6ecity versus time curve shown to the right. When does gxn4r7iee 8 6ethe 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 a7017xj2zvawm1jhzsy; ve (c m ngle between the velocity and the acceleration of the ball is kept at a constant 120 desj0 71vaz2m7 cvxhw1m( yze;jgree. Which statement is true about the tennis ball during this interval 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 tru8)v ;x 9e yizjzdf7u3aveling toward each other. ; fj7y8zxu3uev9)i zd
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 on the x-axis. When the acceleqfmw x:q)3 i2aration is positive and increas xaq)q f:w3m2iing

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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 aver-mjua f/2fg*j dk0hu*j 5dbd0+t u0 fuf7qr;qage 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 two dimensions, which one of the following choices roy; (jlo lv* 4rgdapmj iy q:-5n0*d8identifies quantities that must have the same dire(om4lq-o ndai 05jgd*r *v8;j ly:rp yction?

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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 moves6mg2)f /f u +l4vyptk2w7w;fx;iiags $3.0\;m$ 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-time, :sh:spuf3klamc9b )l:x 4b ,p$y\;vs\;t$, 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 y.(4u 68 sp r;qvua 1fzjfg(fhz66rnbtrack for total time T in two partszgh6prf; sa18v 6f. q(yurfz4u( nj6b.
• 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. time graph for the motion of a car on xea-( 4ksm.2 bn6xamr a straight track is shown in the diagram. The thick line represe.akx4nb( 2semx- 6mar nts the velocity. 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 of a car on a straight track y/z29(kbac 6.sbd dfj is shown in the diagram. The thick line represents the velocity. Assume that the car starts at origi9dafckbs y6/ b d2z.(jn $x=0$. 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 u58afds qm f4 7bd3gt)graph shown. fs7mt8dg 4d)baqu 5f3For what time(s) is the speed of the object 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 :44vx6tp efz ;)ubasv h k1go)motion of an object given by the velocity vs. time graph shown. Fz6:hpok;gbsvu v44 ) aft 1ex)or which time(s) is the acceleration of the object equal to 0?


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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. timel1cdu w+c s- 9xa8(kaoz 2dy2y graph for a fixed time interval of an object’s motion, wy2x sozyka-ad8d(wccu 2+19 l hat 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 increasing spee5 n ma pjfz+ld;zos-dh 2b xum02j/t54d.
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 tuze lj 5gk,e0*nch 7vruv;79krip 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 reachb9/ho l6a7t;e c)g swm.+ icsuk6vxk 5es the ground in a 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 from rest and reaches the gmigh.cma+ / 5vj5/qez round 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 moving along a horizont/o4 f z/1.l7ibd ivjzbal axis is shown. What is the total dii4djl/1/.b zib7f ozv stance traveled by the particle from t=0 to 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 tyiqflr8 x-n x7sh ,3awm0abaj99 i3,ghe following choices correctly identifies all of the listed situations for which there is a non-zero acceleratioji 8f-m9lqb 3rixhyn,9aa wa,730 gsxn?
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 movinu:g c9y vs43+t/r6ldc)) il ep5nbcugg along a line is shown. The object starts from rest at time t=0 s. At what time(s) does the object attain a maximum displacement from its starting poss udp+c n:4i cy)ect bv g)/3g6rull59ition?


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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 i/ mhg7dpqynt;z4o1r61o, hb its velocity along a line vs. time is graphed. Which one of the following choices best gives the proper interval(s) of yiz 7,nmd1ho;rh/1 tg4bpq 6 otime for which the 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,s81- s nfxdd85n8f wir each with constant acnsds wr8if-n 5 f81x8dceleration. At an instant of 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 positlg:m- bgh6 wzuikw,79 3u7p raion $x$, 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 in the graph, which one of the followi lwm1;lh( epn0py8b7;p;e mny ng choices correctly describes the relationship be;e;p nym781lplyb( e hm n;p0wtween the average 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 describeq9 c5 uaijsu ;c)mde-/s the instants of time, at which the car and truck trauc95si)qm;j/a d-e ucvel with the same speed?

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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 start from rest a gm0(d8 l+lmp/l ,tnoet the origin and will move along the x-axis. The acceleration vs. time graph for each car is /(+pgneto8 m ll,l0dm shown. Which one of the following 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 on a horizonta )x84 ppny 3thfilu0s:l line is shown. At what time(s) is the object moving witi8y 4pts )ulf:0n 3hpxh 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 f;pt c44r h6oaxqw/s3uollowing the position vs. time graph provided. During what time interval(s) does r3c/ao 6 ;xqs44huw tpthe mass have zero acceleration?


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