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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 aroundpe8dtutj.0t so p)k5)0p c *al a circular 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 zfrpbf0y*4 26kj 2nkv without reference to a particular directfj z4rk 2fvp6yn0*k 2bion 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 circular track at an average .d2jd8:aubvi( z f9q wspeed of 50 m/s and then completesivz2 fq:jdawu.d 8b9( 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 agedl:o gq,a/ 2-aw f( )v)hwabt the constant velocity. If it continues, how far will iaf/a- wgdl2e (,) bwhavog q:)t 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 s/,9f06tyckensh- re0dd - x7 ly*aewb liding 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 6ktelyxyra-b ,h wd*n ce9 0fe- 7/d0sspeed 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 :ts+ tnbr-g9b7kd9j, xl7vhb 400 km at 100 km/h. What is the average speed7vtjd7lb 9, 9-hbx: tgrnk+b s 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 refers to the motion o9;s)hwi yj)c 0ldicwy;k +g6r f a toy car traveling along the x-axis. The graph shown below is hi9w)kjyw6 g) scicry+0 l;;da 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 traveling along the x-axi.te-1zc 7 ;airvqii2as. The graph shown below is a plot a7.zqi2aeti v1 ;ir-c 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 motion of am/nm 8angskdr4t :84y toy car traveling along the x-axis. The graph shown below is a plotg48m ka sn8yd/r:m tn4 of 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. time of a duck flying due soutc u6e/hkml +)(cfb9koh for the winter. At what point dik)9lu /h+bkm(o 6f eccd 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 t4nc z z(b.se9fka(mj-/ysry +he diagram below which shows the position and elapsed time of a car starting from rest and uniformly accelerating iy/r zajksybz m( +9(cne f.4-sn a straight line. What was 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 t9 4:xgq( ljzxjm kfs-/he diagram below which shows the position and elapsed time of a car starting from rest and uniformly accelerating in a straight line. The averam-lsxj k :q(fg9z4/xjge 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 velocity time gryg8pixl,.;ev/yn,hrxc / q o5 aph for an object with the position tiqxgo .v 8icnh,x ,p5/eylr/;yme 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 information. Au).7;zkl : niteln yzr m0l2w8n ideal elastic rubber ball is dropped from a height of about 2 meters, 2nlz wlurl m).:7t;zink 8e0y hits the 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 information. bdpmgp/ g9;g.m/ zn,vAn ideal elastic rubber ball is dropped from a height of about 2 meters, hits the floor ;/ggzv pm pm /9gbdn,.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 wigzffup bzpq j7 h7:67,th 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 th :e,)b tvfwffd.pj6o: e 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.
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 scenariqc d*1taizb 0*o: 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 follow0wx7(ju9mr atnee:-ming 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 following scenari3h8cu zo) /i16t;,5q m1 v dwmuxn;gxnpg+ njco: 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 horizoca . bwt:d;y9c,k.l5 + xmzwytntal table top and off the table edge. Which of the following would best represent a graph of the t dzx ycc;wwm b+yt:9l k.,.5amagnitude 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 the relationship between distance andr,symy-rfqg g syy:9 t91f:fh8q4o 1d time for an object that is moving along a straight line. What is the instantaneous speed of the obje,r yr:491f8 sgmtgd9yy1o fq yshf q:-ct 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 the relationship betweeru ) /wk8jpq2. ,vwcssn distance and time for an object that is moving along a straight w2v./sks 8cwp,qu)rj 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 Eart+yhe/*q 1ov7f t -wb uvd,hr72qc.sifh with an initial speed of 12.0 m/s from a position 10.0 m -r 7. /vitu 2hfqbeovf+ cq17sy*hw,d 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 0wsezi e bg0 ri)g cq-;3y:t6wcar starting from rest and uniformly accelerating across the floor. The time 3z)gr;-0cq6ywt:e i wbi e s0gand 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 belrb 5k 8inlz.,/7s gfi(5jo lcpow represents a toy car starting from rest and uniformly accelerating across the floor. The time and distance traveled from the start are shown in the diagram. f. ig/k7lb o58 l,p(c 5isnjrz
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 uniformq /s:9jvvyc 5nn0+ifm ly accelerating across the floor. The time and distance traveled from the start are showynv+isf/jc vqmn59: 0n 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 accelerating ball. The position of the ba/0fdy cr3vfz tpr( t o61q87. zghe6n.g avql*ll each second3v7vzy g8.ot n 0fr1 q h cd/zlapg6eqf6.*r(t 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 svzpo/n j/q sa811 8japhows a uniformly accelerating ball. The position of the ball e1pv/j /az18op nsa8jq ach 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 clc o(ls..p of-k (6wadxe9pm+ hown on a unicycle moving in a straight line is shown in tho6p.sophfd l .-9(axwcekm (+ e 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 mt z79rq.ftf1a circus clown on a unicycle moving in a straight line is shown in the g.m 9 1fzq7ttfrraph 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 the s/mcvxh/miab j)0y2 k q;4da*aurface 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 mvwt/ oa t74o*w3a8 oa-x4itofotion of a marble on a table top for 10 seconds. For which time interval(s) did the marble have a negativo*7 ta o48f vtat-xaw/ 3o4iwoe 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 marxf7.2r, l6g rrovhby 4qfu8q4ble on a table top for 10 seconds.7bo6. f4l8rxfrqgq 4 yrhv,u2 For 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 desdd zve a8-8x z8c* 5)jov;e2 fwvuce;ncribes the motion of a marble on a table top for 10 seconef vu)8-xaew; cd5ovd z8* jz; n8ce2vds. What is the marbles average acceleration 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 uniformly from kn)eqbd4m / z8rest 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 hpdeo4xq t/3 9downward 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 rrnt 1 klztw-tyv.l;6t:ki*( sepresent the motion of an object moving with a constant speed in a strs*tkz:ki- tw(6;n.1tll vy rt aight 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*)e9oep +ic n8gvi .a*fu kbn1 motion of a toy car across the floor for 10e*+ pu b.venci8 og9)iakn 1f* seconds. What is 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 describes the motion of a toy car across the+u8/og0l- j3uh xkz7u dg8q cz floor for 10 seconds. What was the total displacement of the toy car for u7g hg /xo8lu8ck0zuq 3j +z-dthe 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 motionhe+x obi+* 2-p pml:zc1iv47yeuu a 6p of a toy car across the floor for 10 seconds. At what times or thypi1p4o7 il uz ec*a2xbv6+pm+ :e-uime 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 unifkl bfdu 8v,t+,lx ;hsh pik6k;5x8k(tormly from 0 km/hr to 60 km/hr in 4.50 s. Which one of the following choices best represents the acceleration of thdtxkh( ;xbtk;,kfs88l vh kui,p l6+5 e 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 curve shown. Which of the followingfo9 ye *dgq3,rq4olj 3 statements regarding its moq doq *yo9lj,g3e4r3f tion 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 veloc )opwvh0 p8ba(ity versus time curvba0h po vp8)(we shown to 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 jy:b5yg(zob. so that the angle between the velocity and the acceleration of the ball is kep:b yby.5(gzj ot 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 kilometers apart and traveling toward each othe:za,b kvpq xe(*if/d;r.:k; aip*,q bve xf/(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 t bb- eu5aaw td7e)i/a)he x-axis. When the acceleration is positive and increasat)e-ab d uwiba7)5e/ing

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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 average velocittmpel h(9x3dr3+sbxa-4n 4 i(gp pfr,y 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 followinj+te-mwf7 1nu g choices identi n e17+tfjw-umfies quantities 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 move,j*:klzup k0 xs $3.0\;m$ 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-t,zt e rk0+. poipa,3a.kb tb:l;)lrhlime, $y\;vs\;t$, 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 / toav73 sh9baq pmx)8one-dimensional track for total time T in /7av)qab3 smt9phx8 otwo parts.
• 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 r4a30 v fjovm2vs. time graph for the motion of a car on a straight track isv02va mrf4oj 3 shown in the diagram. The thick line represents 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 1a/hmbgdnty(h 40*ahl;n: qpa straight track is shown in the diagram. The thick line represents the velocihpgym;t*/1nbh n:l4 q(a0 hdaty. 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 pc+(xxn7ru /7.jehasl s-e1xxosition vs. time graph shown. For what time(s) is xasre.( hj7 1xcu /-nxl7es+xthe 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 give: fzftt4z ,in- ..zvtyn by the velocity vs. time graph shown. For which time(s) is the a-z.t 4f ,ntyiz tfv:z.cceleration 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 graph for a fix x k8n7bp8inyl: b2zd6ed time interval of an object’s motion, what quantity has been determined for zly: n2bni868kd 7bxpthat 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 adq*c.afk4 (h/ kjs l0increasing 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 in4ukw /st 2t9lw 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 3 rfju,z y:m59rxt-ie p6lif7 released from rest and reaches 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 frorje jc0n 2;fzbf ;v+2tm 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 grapho4-wi 00 hrfexi 1sr79w0h9kudra( ow of a particle moving along a horizontal axis is shownu04kow1h(d eo09ais 0wf 7r9x h- wirr. 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 choik1w7o b2f s)s kz9q;toces correctly identifies all of the listed situations for which there is a noo)tbz7 qs9o;k12f s wkn-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. tij9sjg) h8w1i xme graph for an object moving 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 displac9j8) ijwh1g sxement 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 mxn0ne /4x9 ntvelocity along a line vs. time is graphed. Which one of the 04mnexnnxt 9/ following choices best gives the proper interval(s) of time 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, eaca r8yflvoi44 psz/**/tbg (b dh with constant acceleration. At an instant of time, the information about the cars i*gdb4ya8fop4b s/z(t vli /*rs 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 70owk1 ze otc4thuk7iu.yug 0l),*ds a position $x$, 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 tim;(bws0cwgv5sf zu*,m e shown in the graph, which one of the following choices c5gcwubw *z; svf(0sm, orrectly describes the relationship between 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 fol1y 8ct x) 2an*ofo.nknlowing choices best describes the instants of time, at which the car and tr tn nx)y1cok*af8o. n2uck 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, each start from rest at the origin and will move al* j (-j(r w7qlck0hw jto25ewlong the x-axis. The acceleration vs. time graph for each car is shown. Which one of the fol2j*wwl(cel-7hj (otw q 0rjk5 lowing 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 yifd+ex0,9)(pg b0 xr+z n ukkgraph of an object moving on a horizontal line is shown. At what time(s) is the object moving with its greatest speed?k rg)0xd0 kfy+ux 9,npze+(ib


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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 fol3)45 l qgmonx11 .ahomyk6rlu 4sstm1lowing the position vs. time graph provided. During wh1nrmsal41ummg kt)3l5 .hs14o yo x6q at time interval(s) does the mass have zero acceleration?


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