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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 travelom19d 82( (bgzxqjn l a,lvx4*a0epbzs 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 distance pe6 *ps r ;kiu(jq;js+lsr unit time without reference to a particular directioi (s6*qjusjs +k prl;;n 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 completec0q jgvw91x8i s one lap around a circular track at an average speed of 50 m/s and then completes a second lap at an gvj1wc9qx8 i 0average 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 cn5ef;ofo5o9jr5 o owo:*5nstk1 q 1 usonstant velocity. If it continues, hotofrk*of5;u5es1q :nonwo5oj o1 95s w 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 h6mvwp) th1nfr/ 9ol,n ob3m930-kg plank that is sliding at 5.00 m/s to the right across a frictionlesl pwon6)ob 1 hmhm9rn/9f 3,vts pond. The boy then turns and starts walking on the plank at a rate of 4.00 m/s to the left, relative to the plank. What is the speed of the plank relative to the pond now?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.18: A motorist travels 4n1 1.dw;ctp- avn t(dhv/+yk m00 km at 80 km/h and 400 km at 100 km/h. What is the average ctk1 nth1+dny;ad w mv.-p(v/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 refers to the motion of a toy car t zx.px(1/ hsvgraveling along the x-axis. The graph shown below is a plo pzvg(xx. hs/1t 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 gbn-g+xrlhxua.dspt+7 uk 7g 0+9qz /toy car traveling along the x-axis. The graph shown below isquz +s rl-bxax+pg0gt+ n/d7.g9 h u7k 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 along tsenv-w85wx9 orzq;z55cx4- gnk )y mthe x-axis. The graph shown below is a plot of the car’s velocitxr) k-nno wqz55xtyz;v- 49 c85emsgwy 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 duz m2fcl7 9dxn4ck flying due south for the winter. At what point did the duck stop its forward mof4z9x2nc 7dlm tion?





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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 rmkp6v002jb aiyw/2*qg9s qybelow which shows the position and elapsed time of a car starting from rest and uniformly accelerating in a straightq/i* sw bak r0y90vy2qm2pjg 6 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 the diagram below which shows the position and its5-hfv n. b 8fuxmd(l5t,u8sm4tm2elapsed time of a car starting tmum5s,2n4msi ld(ttvb8 f u .5h-8xffrom 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 shape of the velocity time graph for awy6a jyp2 968cv7rypoh 6v.fjn object with the position time graph shown in the diagramy66 vvpwy7 o y8p.jh9cj2 6fra 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 id3 ,wizg 9kebr6eal elastic rubber ir,gw z3kb6e9ball 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 injw99el:oq+x khy+m x f*w+l7mformation. An ideal elastic rubber ball is dropped from a height of about 2 meters, hits the floor and rebounds to its originaly++:9m9 * q+ omeklw7 xhfwxjl 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 with a speed ofq8 j zg q249/s/bxrdqr $v$ 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 bxj js1 vv7wcs/nr o;a-jt .*2ar69uithe 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 fol.ga8u* ua yc2avbp* 8olowing 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 refers to the followin fp) jp(to+9qyg 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 scenario: Atnb w sasqg3t l85.h37m $t_0$, 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 roll3poffz: 05r; x 4gurcws down a ramp, across a horizontal table top and off the table edge. Which of the following would best represent a o 5frc3;g0 x:4z pruwfgraph 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 distan0 eip 7h-wl(obvu n04rce and time for an object that is moving along a straight line. What is the instantaneous speed oviu0brln0eh 4 w(-po7f 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 relationship between distance and timj;gwa j6:q p65.d w,cp e8hofie for an object that is 6 ,5 efa6h dpjqj8wgo. c:i;pwmoving along a straight 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 thro4hv(m;( hxwon q;7ew:y ssq 4nwn straight 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 th o7m(nv;( ; ws4eqhxwnqs4:hye 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 be9t thk9 . gmfim56htq60j s)ynlow represents a toy car starting from rest and uniformly accelerating across the floor. The time and distance traveled from the start are shown in they j t 9k5 mq)9mh6fhs6gt0i.nt 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 reb 0,vgvrn0r wxsjm6a82 b-q2w presents a toy car starting from rest and uniformly accelerating across thvqbxw 0-6a2r20jn r8 gsm vw,be floor. The time and distance traveled 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 startid0de+8j.x3;iul cwsk a6 x,jxng from rest and uniformly acclk0a cw86+u js,x;jd3. exdixelerating across 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 shows a uniformly accelerating ball. The posit 50 swkftdidl0u o t8z*an7(n:ion of the ball ea:nkdw0(sl*u0fa d5 7oznt ti8ch second 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. The position of the bhh4 im3rpl*,qall each second is indicate3h,h r* lpqmi4d.
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 l d/xe:z5wufgop (,8rwjg +(qn ine is shown in the graph en 8 g(5gzq/jpfdux+:or(,w wbelow.
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 univ.diz tjf(w* b*dx,f35 fp m7.civf:rcycle moving in a straight line is shown in*vf zbr *fj,3mfi vwpfdt ..75i(c:d x 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 ear otb2nvbk /44kth

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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 tab 7beybf+lm5l-rn 6f*+uv*p itle top for 10 seconds. For wmf venlby7pl+**u6if -b+tr5hich 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 motionjah*n: hzj2d6 of a marble on a table top for 10 seconds. For which time interval(s) did the marble have a positive acceleration? jn6 :h*jz 2had


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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 jdqf k93;vi9ec;0 cbx a table top for 10 seconds. What is the ;jdeq f;vkb99 c icx03marbles 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 fr8fj hdqgs8,a( om 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 downwa)isft mw4s d28rd 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 represent the motionc w(mb )mzy;a4m6z2h xxe/ic6 of an object moving with a constant speed inwb2x)em/am6i6c zzy(;c4mhx 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 carwulrr .5rsnl1a . c*x6 across the floor for 10 seconds. What is the acceleration of the toylra l.s rcx5w*.u1n6 r 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 m0uq6((d tjrmh *nmi6 1lu7zh notion of a toy car across the floor for 10 seconds. What was the total displacement of the toy car for the entire 10 second izn*1qui(h0h djrut(7nml 6 m 6nterval 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 cwx 2lupde5* lp,w m6;of a toy car across the floor for 10 seconds. At what times or time i6l ppcd ;mewwxl,u*25 ntervals 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 kt0.t udv4,lgxioz(d2-nzbk)x 8fh d5m/hr to 60 km/hr in 4.50 s. Which one of the following choices best represents the acceleration of the ca vdi. ) ox(zbtd4tz f2gdkl8u -5,xnh0r?

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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 t7n(c: (mqd xzghe following statementzmcg7((xd nq :s regarding 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 k(jq7tf9x 2+-tcw hps 9ps 8aoaccording to the velocity versus time curve shown to the right. When does the car hjw(9fk tsqpt-8h 7cp2aos x9 +ave 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 tennw+ kf kh)ri 3iqovl1 ; 397talss+q9dtis ball is moved so that the angle between the velocity and the acceleration of the ball is kept at a constant 1kldsw;asvf tk +9 h)7+o13rq9ii 3tlq20 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 kilometerr.bv+.z*n(xlvvjr(bti ,e2 qb 4e w:rs apart and traveling toward each other.xvr nb4bb:(.jr(r*.+lvev t z2w eiq,
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 thdjk(mv 9pkt ki24dzx 0gx 2/2qe acceleration is positive and increasin92z g/ imt2v xkpq0j 2kdx(k4dg

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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 vecd go+d r0-dfids/ s1/locity 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 followik58. s jcdb1iwng choices identifies quantities that must have the sbd1wj85ck i.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 7avn6yxk0.jh,wde0 f 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,484 zofdf9za8xe pfy6 $y\;vs\;t$, 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 pb8iymg56ydvf5b 97z 60zjp ftrack for total time T in twopgfi0 y6p6zvzy57d8 bbfm5 9j 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 for the motion of a carr7rt5; hs.flo on a straight track is shown in the diagram. The thick line represents the velocity. Ass7srf t; .o5rlhume 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 straighty( x54omug f -no6z:bp track is shown inp6m gbn oou5x-yz:(f4 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 motion of an object given by the position vs. time grapu gl -7z;p563uzfz/aj 2nijjmh shown. For what time(zgjmuz ;7u np2fi5/3 zj6 laj-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 by the velocity vs. time grapfvj rmn(w (70rh shown. For which time(s) is the acceleration frw(j (m r70nvof 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 accelerationbq03 t9-tdh+;ot6 tdyoo vn o fg2ij/; vs. time graph for a fixed time interv9iot0d/t b6-;toqdo3nyf+to vj gh2; al of an 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 horizontal line with i+ gqv4 ayoeqps-d)6; sncreasing 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 iaat.kl 9k (a/bn 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 mnz .d2n i.x;yq7t: z4fjp)hwa 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 groun3fhdo s529/m d fwjefjg9( wk7d in a time of $2.50\;s$. Neglect air resistance. From what height above the ground was the object released?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.17: A position vs. time graph of a particle moving along a horizontaum2u5eo qls: 5l axis is shown. What is the total diuuse lom5q5:2stance 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 of tw b8+fzcyc;h rep.d0*he listed situations for which there is a non-ccb e zfhp*8.wr0 y;+dzero 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 a :xf b cle*5(5pje3yhulong a line is shown. The object starts fro:fpc u3(je h5*by5lxe m rest 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 alonp/ 0*c lngxpa7g a line vs. time is graphed. Which one of the following choices best gives the proper interval(s) of time for which the object is moving away from *xcp0 p lng7a/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 o tnb;f op5v5ys mnn37(n a horizontal track, each with constant acceleration. At an instant of time, the information about 7n5;nf3m ntvpsb5(yo 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 position y b3se9,zkka;$x$, 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 follo*vtl8a3a(zozh8 as *t wing choices correctly (v*z l8atoaaz38hts *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 following ajxd ,9t1r 12 cj.jnybchoices best describes the instants of time, at which the car a11cxjd a9t j.yr2jnb, nd 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, each start from rest at the origin and wia+gm+cvo 6fituw z 4:)ll move along the x-axi+4 v6mca+og t)iwfz u:s. 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 1y y+ryb8nbn 9a horizontal line is shown. At what time(s) is the object moy +nnr1y8b9 ybving 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. timfd*)a gv e* 8alamg:1oe graph provided. During what time interval(s) does the mass have zero accelerataa8f*m)*da1 golgv: eion?


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总分:72分 及格:43.2分 时间:不限时
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