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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 tra-hwv(n*jbc: ovels at a constant 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 distag:zygcv( y.rg6 x-gpxb(o45 w5s cz:s nce per unit time without reference to a particular direction is v6( ::x5gsc z4(. zsbyc-5xrgg ow gypcalled

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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 trauygv/ z93sdore-q bd,* /r vh9ck at an average speed of 50 m/s and then completes a second lap at an average sp9rvqd ov/u e bzg/s*-yd9 r3h,eed 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 velocity. If it coie3an 8z9 wwwd-;4wdn+yj8 zd ntinues, how w9-nd8iy8 wj+4wz3 zeadn;dw far will 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 stationary on a rbl4xnqm4:; tv(j dp. 30-kg plank that is sliding at 5.00 m/s to the right across a frictionless pond. The boy then turnt;r(x: p q4mj 4vn.dbls 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;g2vc9ci*xx p. What is the average speed ixg 9x v*pcc2;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 of a toy car traveling aloxh vd:fe: hlg wwf-ppq/ m-4zj3my, 4)ng the x-axis. The graph shown below is a plot of the car’s velocity in the x div)jgh44hf wf :e/m: mq-zp,w dpxl3-yrection, $v_x$ 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 o sz /j+d xm00ihstq3i(f a toy car traveling along the x-axis. The graph shown bejt/i q m x(i003d+hzsslow 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 motion of a toy car traveling alon2 ts:plh csj*9g the x-axi9ss:ht j l*c2ps. The graph shown below is 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 duck flyi65 sds63m ulying due south for the winter. At what point did 5mu ss6i6d ly3the 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 position and*(fxjl gm7/kp7s ei u5 elapsed time of a car starting from rest and uniformly accelerating in a straight line. What was the average velocity of the car kf(l ui7e 5xm*p/j7sg 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 zlq0y pvk :q975k rgtkvj+ p18to the diagram below which shows the position and elapsed time ovl5y :p70 g+89 k jrkk1tqpvqzf a car starting from rest and uniformly accelerating 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 shao;y6v0 l orva.pe of the velocity time graph for an object with the position time graph ry.v;a 6vo lo0shown 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 n . (i9+hacuzh)hlw;n refer to the following information. An ideal elastihhzuc+9hli ).a nw;n(c rubber ball is dropped from a height of about 2 meters, 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. A2x:1g fs hoc-en ideal elastic rubber ba xf-oecs1:g h2ll is dropped from a height of about 2 meters, hits the floor and rebounds to its original height.
Which of the following would best represent acceleration versus time for the bouncing ball?


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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.39: If a boat can tr* b rg/r:lrl xk)8v2alavel 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 20ij o 4q.mwb4vxy:fj 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.
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 cgdp mys*sfp- /-yl90following 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 rebs8 asq5 a k2+69urbabfers 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 f59ct/d v98z-inv;:*vtxz vc twzc3uwollowing 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 tajc7 .6j*hj(a yftd xe,-8.;xuj oanep oq6n8 gble top and off the table edge. Which of the following would best represent a graph of the magnitcuay.e7n6- j o8n ;,j8gp jd.xqt6e (*ahofxjude 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 relatig1 we;qzk0(vponship between distance and time for an object that is moving along a straight line. What is the instantaneous(g vkz0q1p ;ew 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 the relatizyjbz u,o)7jjw tw4)5-*o msz;yz 3qdonship between distance and time for an object that is moving along a straight line. Between what times did the object haw w5;zd zm7o) 3-ut*yoyjz4jj,b) zs qve 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 st .a4wode/3vxfql;vo /raight downward 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 qfov3w;x.d/4/l evoa 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 car starting f ::;chwd dg/etms.pe 4rom rest and uniformly accelerating across the floor. The time and distance traveled from the smd./w 4gt: e:hsc;pe dtart 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 a6ec)qc7h2 k ls)we iye5 g.kz(nd uniformly accelerating across the floor. The time and distance traveled2c5kyslz)wc).ek6i ge7eq (h from 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 toy car starting from rest and uniformlyv q uma:)o (xy5 rp8m2sh;d,jb accelerating acsjmx5aduv 8b2op;)h:,yr qm (ross the floor. The 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 sh0-m +ytra9bc gows a uniformly accelerating ball. The position of the ball each second is indicatecb gr-ya0m9t +d.
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 r p,7rse -c:l)c-b gplayc42 puniformly accelerating ball. The position of the ball l -bcg ycpesr,a: rp47lpc2 )-each 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 a unicycle moving in a straight liet *u q xf9s.(xb 6h8fe*u:mxyne is shown in the graphem.8*h *x(y:u fbxxsue6q f9 t 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 moviwd6hrc3( mhwi)0,9xnikk2zl ng in a straight line is shownc6w,( hlk9nrkixzd2w0 mh3 i) 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 vacuum near the surface of the earth2 af+)2kwn6magfd 6s)o- bjlr plwt d5z2t4b1

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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 drxkg,b+nc 1 (lescribes the motion of a marble on a table top for 10 seconds. For which 1g+bx( cnlkr, 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 marble on a table tovq ge:8pz 8yww 6l/l/sp for 10wgwyp:el z6vs/ /8 lq8 seconds. 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 gx-q+um7v)i+t9rjvh k-zf i,e raph describes the motion of a marble on a table top for 10 seconds. What is the marbles average acceleration between t = 3.3 s andizh7+t k ivuf-x9q)mrj ev,+- 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 rest for a timuzb6 i(gq.1psk7ffxw0 q,-t 0ax ,came 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 wys acycy)o9) y tm28j-ith 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 could69.k1djt r )b.u-zttpxj bh*y correctly represent the motion of an object moving with a constant speed.1 jj-*z tbx6b 9ur yhtk)d.pt 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 .ev0h 5n-+m,dm)iwod1g yipr.,sr klcar across the floor for 10 seconds. What is the acceleration of the toy car at t = 4+sdh5r wivm- l.d, .ypi,m0gnk r)oe1 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 acr7o37d ,nmloba oss the floor for 10 seconds. What was oalod,73n b7m the total displacement 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 accompanying2-wggzdh6r z) s+h/wx graph describes the motion of a toy car across the floor for6/zrsh xg-z )wh2g dw+ 10 seconds. At what times or time 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 vxhz vk6t) j:vy6ky 63in 4.50 s. Which one of the following choices best represents the acceleration ovkzx66:h3y6vktvy j )f the car?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.07: A car has the velocity versus time curve shown. Which of the followm)f+vfb.s w b+ing statements regarding itm+fs.f )b+ vbws 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 thf-synw479;1izldx r r e x-axis according to the velocity versus time curve shown to the right. When does the car have zero accelerati9rdx;f1n wz 7r-4ylison?


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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 mw* yzqnk x5,;tennis ball is moved so that the angle between the velocity and the acceleration of the ball is kept at a constant 120 degree. Which statement is true about the tennis ball during this interval o;wxz*, kmqn5yf 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 eac1j 3cu7vg yui hf d7+qx4-d.eah other. jua1dvhe+i c4x -yf3u d.g7q7
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-a . 6g.oe u*(e,wro9nyaid yw+vxis. When the acceleration is positive and increas +,wuv.i .a*ndew ygeoor 6y(9ing

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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 of8d2mo)a1e dx;y:-4nlvu4y qvoy kq f: 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 dimenq)yh /z6mja*sa :r7 d(oie0 jbsions, which one of the following choices identifies quantities that must have the *djo(6b eys j)aa:0/mzhirq 7same 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 movesf4g( 1 chnpvx9c mb41c $3.0\;m$ 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-timr/l +dpw*c84rbz gr ,oe, $y\;vs\;t$, 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 track for to1 bai3npjq:wnhm+49 dtal time T in two pa1qwp +4:n3b9ij nhm darts.
• 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 fori/*md( t/f n qkq7zb4q the motion of a car on a straight track is shown in the diagram. The thick line repre/zqqn7bdk(itqf 4* /m sents 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 trnqxp o9 q14,d9- mlp8ma .gigsack is shoxl9 spd amp.,qq9i81g4o- mgnwn 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 movow 1on8w*oe) tion of an object given by the position vs. time graph shooow v1)e8o n*wwn. For 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 motion of an object given b(ut 6gll5n7 cwip8kn/y the velocity vs. time graph shown. For which time(s) is the acceleration of the object equlgiw57tc86k nn (l/pu al 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 accxb7e nk9;aiv l 4jgaf85q8:1pv : lpyqeleration vs. time graph for a fixed time interval of an object’s motion, what quantity has been determine i:x bp;kg1yq8 ea59 lfva pvn7lq:8j4d 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 i, .jx );,/ibhidlj( ujq( mbrincreasing 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 infdqe0 - r2w 75m1vk* hvu.lnlv 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:mfyx-t dk90-x3qx5bs6kusdl j/-k v 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 tyc+q t06*x :qkao9iukhe 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 gradhg. 99murjdi fv )ewt,mu, 17v0mb(v ph of a particle moving along a horizontal axis is shown. What is the total distance travelej 1,mu),g vv( 9m. e9b7itd0hm uvdwfrd 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 of thx*35i pe1fml8le x,hre listed situations for which there is a non-zero acceler*1lmhp 5 xrlife,e8x 3ation?
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. tim 2p(f i6+rlhoke graph for an object moving along a line is shown. The object starts from 2kfl h roi+(6prest 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 origin and its velocity along a line vs.sci9ti1e9 nq78u+ ars time is graphed. Which one 9s8ru7ctnie q1 +i9asof the 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 ri(egz2 cxu.cd bh/8svta-aq+ 8ght on a horizontal track, each with constant a-8 ch8.a/(aetds +cu qxg vzb2cceleration. 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 positjkk. 0ao. ;rcaion $x$, 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 following chu st 2rehtd/j3/*ceg:oices correctly describes the relationship between the average speed of the ge3hjrc t /d:et* s/u2truck to that of the car?


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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.42: Which one of the following choices best describes the instants of t,cle)j:l)5f7vn g cjcx slhc 3l3k3b-ime, at which the car and truck t sl) jncl :lhg5)cj,vlxcb7 33f3ke-c ravel 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 orw eka/t90/ t i7lbfgt)kd+j p+igin and will move along the x-axis. The acceleration vs. time graph for each car is shown. Which one of the following choices correctly identifies the relationshiptli/)def9 7tkb g+0kt/w+j ap 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 ho2zny qh8uq r s9255e;pe3nspg rizontal line is shown. At what time(s) is the object moving with its greatest speed9ghune2e258q 3sp p5nyzqs; r?


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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. ti;ahmhoi vy6ozo)p b;+i7*3 c-dbnfb u+7nz0 tme graph provided. During what time interval(s) does the mass have ze v6 iy7 -bh+fo*b;;nut37hazoc zbip)no+d0mro acceleration?


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