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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: 匿名未登录  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 circu-,chb- k +;w tbpuh(;au m9jrglar 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 to a f1;fl:0urnr rz31 fo m+ez k *kue;7rrparticular direction is calr3zr1e for k70uzn1:e; mr*lk ;rf+uf led

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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 1(t wj:bl7o hur2a bz6xn n5i+lap around a circular track at an average speed of 50 m/s and then completes a second la ojw+ul1anrt bz xh(i672n:5bp 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 v-u c pd,a)kav d33/ldpofz74q elocity. If it continues, how far will idlkop 3df ad/ a)cu7p,zq4 v-3t travel in 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 that is a 22;w+mzk6aaxom-mg sliding at 5.00 m/s to the right across a 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 themg;w+-2 xk62aamao z m 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-h++ -oqy(ik:hhmme: ygkrg, km at 100 km/h. What is the avmo+kk i h h m+ey-g:yr:q-hg(,erage speed of the motorist 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 rnvb d9.+ku0lcefers to the motion of a toy car traveling along the x-axis. The graph shown below ivnku d.+ bl90cs 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 m/16u, zdf wdbtoy car traveling along the x-axis. The graph shown below is a plod/fzwu,b d61 mt 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 re ln d,c(o- rfcpb1f.m:fers to the motion of a toy car traveling along the x-axis. The graph shown below is a plot of the car’s velmdlfbcocp- n r.(1, f:ocity 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. time of a dh) fv i., vlnsmw6*3gquck flying due south for the wv gv6 lif3n,)wsq. h*minter. At 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 positionnuwbx)6 e 1 yt.dq)mt1 and elapsed time of a car starting from rest and uniformly accelerating in a straight line. What was the average velocity of the car durn.y6t )) wed1t1qbxmu ing 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 x h)0yw1 5etdjdiagram below which shows the position and elapsed time of a car starting from rest and uniformly accelerating in a straight line. The avjw tx15y0e d)herage 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 thsifhdrv74c 94ip;3bsh5i dv qer9;x7e velocity time graph for an object with the position ev bq iv4dx;97s53h;dis4rhrf 97i p ctime graph 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 infhc;jaki hb3u++z9t x7ormation. An ideal elastic rubber ball is dropped from a height of about 2 meters, hits the floor and rebounds to its original heigh uktah;zbh+ i79x+3cjt.
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 informa hnx bl6bq136fxyj +8stion. An ideal elastic rubber ball is dropped fb1qjfxx6 s8l3n+6 b hyrom 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 withzce *3he(o)pexcly8q73 i h. u 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 scenario: At p;j/ama twszkr8w fq)9i +xjhp* 5l4/$t_0$, 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 follp3 uf3oior.h 3q7.ztxowing 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 r5u*exci veba j6/70 qcefers 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 referjs(sve* rb 0r+s 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.
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 horizo2v a 8fcr7+r1 uh)/ty)lj j5o/ eekcaantal table top and off the table edge. Which of the following would best represent a graph of the magnitude of the ball's acceleration vs tim+fr5/1uyj2) jaca7/ a8cl t )ekoverhe?


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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 the relationship z.gf -3in4g/whh2 eg9cdc :yobetween distance and time for an object that ig3/:gic-e. dyoz h 2g9hw cn4fs moving along a straight line. What is the instantaneous 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 represents m v fj3hj+o8m*.ioyr1ur bp31/ f cut7a5ar6z the relationship between distance and time for an object that is moving along a straight line. Between tof 3 8 3uormmz51 /aihy7 6*+jj.cbuavp1rrfwhat 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 initial s3;psw:zfmy6z peed of 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:ysz 3;zfpw6 m 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 car starting from rest .zispr.cz s m( 7g*vc8and uniformly accelerating across the floor. i.c(8 7 .zvm*crzgssp 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 uni3:*ji7iux cfkfec ;2 jformly accelerating across the floor. The time and distance traveled from the start are shofxk2ifi ce: 37jjc*; uwn 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 toy car starting from rest and uniformly3w7(rf enj ma2 accelerating across the floor. The time and distance traveled from the start a(fwnae 32 7mrjre 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 uniformly z/ h8fmrrz0l7q7pqu; accelerating ball. The position of the ball each second qfpzh;rm 0 7q7u8zlr/ 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 accelerating ball. The4nmhkoisynl x7rdh1;3l 5 z-eg, :x6:diuxr . position of the ball each nd -:7niho:rxy l5 zk luxm6. sdg;,rxieh314 second 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 1-dr1 3g byuu0+o ezlr*pb(cba unicycle moving in a straight line is shown in the bboucb31+pzgr(-1y 0eud rl* graph 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 moving inr:g- )l3)fsgh aj9 vdq a straight line is shown in t 9dg)q gja:h3l-fsv r)he 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 vacuum near thes duo;f7): -ap1hmsy j 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 k3x*-c(jol tvmotion of a marble on a table top for 10 seconds. For which time interval(s) did the marble have a negativ t(*3vojk-lx ce 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 accompanying graph describes the motion of a lil1r k+(/td efe5f0,gp,mj*l -r sqzmarble on a table top for 10 seconds. For which time intervale+m0(drqfgr,k5 s1e/, jp-f*itlllz (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 describes the motion of a marble on a table 7c/q. -ia lg wj7db;1io sepv6top for 10 seconds. What is the marbles average acceler a7-e gi;i/p 1svwbcjl6d .qo7ation between t = 3.3 s 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 accelerates unifo7z,moewh , /h2meo5 kqrmly 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 with a i 425k lmzh+h3le 7yglspeed 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 mot6t xkv t96qxv)rdmoa 4uq5 ec f)/a:w:ion of an object movf5/ xewxkcq ::a9tvaodu m6 v6) qr4t)ing with a constant 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 floor bx8q3q7kk7j/l voi47 7cg q apfor 10 seconds. What is the acceleration of the toy cgbqkqv3jko 78a7ix 77q4c l/par 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 describes the motion of a toy car across the fldnig 6ye8 5)u3q o84 radxv5ivoor for 10 seconds. What was the total displacemendvy q 4dnx5e)63 o5i8rgi au8vt of the toy car 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 graph describes the motion o *937r.sipcp cmv zu7wf a toy car across the floor for 10 seconds. At what times or tivpm 3*scw 77 pric.uz9me 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 4.5o4s.eqho4ax3bka l(-jn l* n/xr,/j, wsb5av0 s. Which one of the following choices best represents the acceleration of the calb nao *(e,r-b/o/qjhx5 w 4,3.4av knasxsjlr?

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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 curve sho dxtor46ejim-/lrf2 9wn. Which of the following statements regarding i-24e l9irtmjrdfx/6ots motion 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 velocity vers( n7+.hbstsnous time curve shown to the right. When does the car hah+n b(n ots7.sve 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 tefm.xyx(05d):n8bign zf v t.p nnis ball is moved so that the angle between the velocity and tpxf:.gbt z0fnv i 8d(5ymn.x)he acceleration of the ball is kept at a constant 120 degree. 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 ki bv)ad0pr *paj(sp- -v g)oah4lometers apart and traveling toward each other.r)4 ap-g pphvv0(b)sdj-o*a a
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 -54s/4gvw m:zs) bbsw76 xeveguaqt2b) 7gd h the x-axis. When the acceleration is positive and increah /:b 4)m)sq tabu7e2x7w6zg vbg egd54vs-wssing

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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 owu)t/ tf3g )rap:ip 7sq/e..e0iefraf 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 two dimensions, which one of the foll+6x8d-gih wpt7xj ss/owing choices identifies sg7 wpx +8hs td-i/xj6quantities that must have the 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 moved/.qeu vb8yao771e qd s $3.0\;m$ 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,:/dq ppsvx3z8 u5gu 7b $y\;vs\;t$, 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-dimen0kmn7 ne /sw4v/ m.8(+dd9iz hxw znaksional track for total time T in two parts. nm0v7 w4z(k zx8ika/nm s/e nd9d.+wh
• 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 a ) ryn) urrm4:qstraight track is shown in the diagram. The thick line represents the velocity. n)rm:uyq)r 4r 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 *e2jr f9vz8zjmotion of a car on a straight track is shown in the diagram. The thick line represents the velocity. Assume that zr92j8zvej* f 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 bva 72j,xu rq r.kpcrm4 (vjf0:y the position vs. time graph shown. For what time(rva j7ufjx4rmp( cr:. kqv20,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 motion of an object giveh.ua8odvp:mw zi4q 5k- +;n ifn by the velocity vs. time graph shown. For whic+:.4 nwo miuivd85q-fpkaz;hh 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. time grapeucf 8:t k6p,uh for a fixed time interval of an object’s motion, what quantity has been determined for 6e cf:,ktp8uu 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 incrvj0d 6-l.uq dheasing 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 tri,l a;;d+unvur 7df k,ip 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 a time ofswvy- u,pc :8ye3tr-o $2.50\;s$. 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 ground in a tihtcq kxpa, xr60v23 io +oa5*vme 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 particlx,e,w6l zc t( 94f:h)spqc+dmxosk+te moving along a horizontal axis is sho9 sdkchzl, ,x+ftetwm4:q6 xsoc+p()wn. What is the total distance 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 the following choices correctly identifies all o bp0dpf 2+o.sn.q1m omf the listed situations for which there is a nqmp012o.dposnf bm .+on-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 a line is 1guk3h.h 1r 0scm w7ozshown. The object starts from r sckuhgh1wom 3 71.rz0est at time t=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 rfti* uc,q *(e (mmwy,qgf9p ,origin and its velocity along a line vs. time is graphed. Which one of the following choices best gives the proper interval(s) of timemq( fq,et ,,gwp9 yurc* *ifm( 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, each with constpbwku8b;w:4fv1 0o: vrk/ d (xwjn.nn ant acceleration. At an instant of time, the information about the carswr4njnx8.:dn w;(/k 0 fb :kvouwpb1v 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 positiod1ad6th2 ew6 li.ckh7ts(m,fn $x$, 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 fol7 cr07af6tgrflowing choices correctly describes the relationship between the averatfcag760r fr 7ge 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 choicesrcho9wq )xes 8fk2g 9, best describes the instants of time, at which the cars 2o8e f,kqhg9cw)xr9 and truck travel 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, et+*tuix zdfn zt .py7. vyp3.3ach start from rest at the origin and will move along the x-axis. The acceli+ 73p .yuy t.xzdtnz*fpvt3.eration vs. time graph for each car is 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. yf)-h mng5hpc33 jbt3time graph of an object moving on a horizontal line is shown. At what time(s)cnm 3f3h ph3t bj5)y-g is the 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. t bk9c 4ih;t;/jm5atrso j:,r dime graph provided. During what time interval(s) does the mass have zero acceja/h;; os4kdtir 59bcjmr :t, leration?


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