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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 constantx 7q 1lr99raqdx kt4i nfl.)4q- dkh+x speed around 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 distancdcyub.dgt s-v,, 0j 8xe per unit time without reference to a particular direytgx uc0s 8j b.d,dv,-ction 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 laptgc /3:j *wz1ioubn7 g around a circular track at an average speed of 50 m/s and then completes a secoi:tu gn7 wjzoc/1*gb3nd 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 3.l,re fz rs8*cd8waovelocity. If it continues, how far will. *od8lwez3rsrf,8 ca it 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 statuut57 vv(p nczxl;j;lu j o1.*i.l, btionary on a 30-kg plank that is 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.u ,xl5v;t*p1ucvbu .j7;il j( ntozl 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. Whatnq e*;cd4 gyr5u, hk)f is the average speed of the motorist on this tri ,k) hqgr4f 5;*udyecnp?

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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 car travelcq(rvh . z:7z44 i rx3beoah(ging along the x-axis. The graph shown below is a plot43 :7ov(.zicr gah(rbq4xeh z 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 thea dv8+ 4dls hy7vc*gi5 motion of a toy car traveling along the x-axis. The graph shown below is a plotyi vhc7g5va4s*+d l 8d 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 a 0gef* acwsua rgo)t-9a;e 55g toy car traveling along the x-axis. The graph shown below o;0a5rw 5 a-aesg ge) c*tg9ufis a plot 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 ducx :lw3j0dd+ gmbgh5/ sk flying due south for the winter. At what pbxdjw3/ s h +ggd5lm:0oint 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 positzj c9u tc809mor-;v vmion and elapsed time of a car starting from rest and uniformly accelerating in a straight line. What ocv8vz-;9tmc r j9mu0 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 rhsr 6- jxc +8prs.*qj)6qxriqefer to the diagram below which shows the position and elapsed time of a car starting from rest and uniformly accelerating in a straight line. The average acceleration during the entire 3 secr r*xcj .sir q+-p6)jxq 8hqs6ond 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 noa o ,/uza8d5upi4v*graph for an object with the position time graph z*i/5 du,aau4op on8vshown 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. An ideal exgl ;9)fqv, rs*sz ef,lastic rubber ball is dropped from a height of about 2 meters, hits the floor and rebounds to its orivxqf* ,)sslrf,;z9e g ginal 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 followin e/n f.kt;z* esz.8jvnmjg 7g2i8as-cg information. An ideal elastic rubber ball is dropped from a height of about 2 meters, hits the floor and rebounds to its originam / .-.egj7 nv8kaif ;ss g8c*z2enjztl 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 traveuk/e h wh7-z/sl with 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 fo+ dsjpd2 .qzl8k*(zcp lf/)e yllowing 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 scenario: )(g5ip 9a(jy2 9- dlozu t;-xinndqkm 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 s ;dk6)5ptsjfzcenario: 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 followi l/yuhn6eeq;e .k, -ckng 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 off i p,v/;)zlhb7 gsafl -the table edge. Which of the following wa/ -)fv;,h7is pzgll bould 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 the relationship between distancx q jp4*p+x5j1w q4-qvg;g uwje and time for an object that is moving along a straight line. What is the instantaneous spe qj54gj4-ppj ;wgv *uwqq +xx1ed 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 represq; n8 zyja5op9gkt108 oi4ydhents the relationship between distance and time for an object that is moving along a straight line. Betweoz;g dayi940 kyj5po18h 8tnqen 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 dos w:oh2up7(z wp zv0jw(jo ;+awnward on Earth with an initial speed of 12.0 m/s from a position 10.0 m above the ground. Ignoring air resistance, the speed of the object when it rwv(ouw 2hz 7 0ajw: zpojp+(s;eaches 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 represedt 5a w y6,ctvay.7b.lnts a toy car starting from rest and uniformly accelerating across the floor. The time and distance traveled from the star7 t6.dcvtb .l5,waa yyt 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 start3h:6x-- aayw;bmavfr ye8 p)ming from rest and uniformly accelerating across the floor. The time and distance traveled from the start are shown in t:6eabpfa m 3-rm )8xv; ywhya-he 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 ren:uu*b);e tdw-z9 +z k wgnfn:st and uniformly accelerating across the floor. The time and distance traveled frfnd gw we uuznt :;):k9n+zb*-om 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 uniformly accelerating ball. The position of ;faua b67kni0 the ball each seco0nua7fkb6ai ; nd 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 k40dz7maexcgkhe0. 5f ;ek/r b3apa5 uniformly accelerating ball. The position of the ball each secona504khfar ezagb0ckd;pk em .x7 5/e3d 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 ung9hv0d kh3vb8 icycle moving in a straight line is shown in the grap08kvg 3hv9h bdh 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 in a yr sw2a qd1o:2x. 0wthbb (,ydstraight line is s yd 1(0ys w2wob2a:rt,.bhq xdhown in 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 v mz.ayt aoh0d d**bp17acuum 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 tablexslu1v;i ;:p 82ijcow top for 10 second:scp u i8v1l; ;2oixjws. For which 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 accompanying graph describes the motion of a marblxu8/-ga4redq (; ujcg/be1jv i kws i3)u m+r9e on a table top for 10 seconds. For which time interval(s) dvaid u+9e ibrgux8/we ) q-(/; jrg41ukmcs3jid 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 tfmkbp/ zn5r+c nw/ .r2able top for 10 seconds. What is the marbles average acceleration between t = 3.3 wn5mnk.c+rf/r b p/2z 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 uniforlpyl .p0r-3ad9*joctw6e oc9; m+ed xmly 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 wit6 hnz,h(qin m(x6:xqe;zdoq, h 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 theg)er-qi zqpa64.)zvm motion of an object moving with amg64zz) ipq.qae -)rv 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 graphqx+.,h x;rq kp describes the motion of a toy car across the floor for 10 seconds. What is the acceleratiokx;r px,. qq+hn 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 6 q80h4wrbt rew/ /b/e rdgnbwn*;d6n describes the motion of a toy car across the floor for 10 seconds. What was the total displacement of the toy car for the entire 10 second interval sho tdweenbbg4h r ; */ nbnrr86/w6wd/q0wn?


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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 5uiewhk0 mdpg m535/znhp l)g29tn -v(gy md)of a toy car across the floor for 10 seconds. At what times or time intervals must the netzn59 du2w(- l/mggm3v m k dt g)y5)phip0n5eh 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 4.5s 7utao90lotg abq +*z)mw*e4k 3 r +nkzy;.sb0 s. Which one of the followin0by*9tz.+og t+ *naas 4ukqko m3z7 l rew)s;bg choices best represents 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 ve; q n8fx7;n8mmpr9voalocity versus time curve shown. Which of the following statements regardf mmq;9 o88nrvax; pn7ing its 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 versuf o +;sfws4/el htc ps,y(e3q0s time curve shown to the rightyet4,0l qpe+ 3o s(/f;hwcfss. 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 so2z k;f1wyg7jv7zvct1yr 78mi that the angle between the velocity and the acceleration of the ball is kept at a constant 120 degree. Whi1 vvzj2m; rf7kyi1t7 c87wzg ych 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 anth( w8/ieyu 4rd traveling toward each other.wy iu4r8 the/(
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 txf7*y/ed paev- 6y ;zohe acceleration is positive and increay 6x vzp;oy-d/eae f*7sing

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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 velocity i/t n :/l1c64isw*nfg,q o offls

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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,a, 6ns)cy y4xp which one of the following choices identifies quantities that must have the same cansp,x6)y 4y 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 movea;61/hd b w25kftws-ri9l nfxs $3.0\;m$ 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-tix 5sxmdqsajrbv6 7 ;3y qit197me, $y\;vs\;t$, 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 one7gz7b c xf*)xh-dimensional track for total time T in gfc)7xz h b*x7two 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 vs. time graph forbcfhcmo* k;22qcof,:b )pe 3m the motion of a car on a straight track is shown in the m2:e mocb )bk2*3hf, cpfco; qdiagram. 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 t+w7xq-ub)z1 3piqu 2.xjaowghe motion of a car on a straight track isu.7x3 g 1qbp)zwwixauq 2jo- + shown in the diagram. The thick line 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 motii 2 ,lcndq(rvwj9 zbri972 nk8on of an object given by the position vs. time graph shown. For what time(s) is the speed of the object g78k 9bi,vcr dwr22nqjz l9(nireatest?


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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 bz 62eoen87sbe-ycx .7jdc1kmotion of an object given by the velocity vs. time graph shown. For which time(s) is the acceleration of the object equalxc7bk6 7jdoeb s 2 ec1n-ze8.y 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 vh(6n792 eo vgpnavq3 fixed time interval of a6vnh(ov9p7naqg v 32en object’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 ndqh6 qm,;u* x2 slpa)horizontal line with increasing 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 tr+:vczi7;zmyc4p1 ka lip 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 ae:q +o1vi. .j4etnny/+ tka uq 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 gnft 1w is9 nybp57fj2)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 graqw9pi*iy 2x y ein/40uph of a particle moving along a horizontal axis is shown. What is the total distancep*i 4uq92yinexywi0/ 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 t)j mxh gvl//)whe following choices correctly identifies all of the listed situations for which there is a non-zero accel gxv /l)mw)jh/eration?
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. ti. ozb fen9tu myr)4d67me 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 displacement from its startim7t rz. y9bed4)f n6uong 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:y(ti phuk9 9y origin and its velocity along a line vs. time is graphed. Which one of the following choices besy9kp it(yh: 9ut 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 movincv9qrke-k5 um q. d.q2g to the right on a horizontal track, each with constant acceleration. At an instant of tiqk2 .9.r qc-d5uvk mqeme, 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 po(*nb4 s y5wliyzxm jdm6n -;6gsition $x$, 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 graphs4av vnfi*6.vi8 x6me, which one of the following choices correctly describes the relationship between the average speed of the tru.8a en646 xifvv*vsmick 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 c+cdbvt 195pal o0ze1a17 qfmrhoices best describes the instants of time, at which the car and truccdl 90v7t m5z r1ap1aqo+1ebf k 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 azkfpt f*(sml4p+7j ,k nd will move along the x-a,(pp z4lf*sk fk7jt m+xis. The acceleration 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. time graph of an object moving on a horizontal lizaf6ejp0 ::yq*o nauf7 t s(59, wrkgrne is shown. At what time(s) is the object moving with its greatest soatzun: a,y*r0 p 56f9sq7:kwr(fe jgpeed?


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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 a * t403ewxu7 tv w1ouqvvx:lzwg924jclong the x-axis following the position vs. time graph provided. During what time g3*:ww2t x94tzx1vj e u 470lvwuq ovcinterval(s) does the mass have zero acceleration?


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