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习题练习:Physics Bowl by Topic 2: Kinematics - part I General Motion



 作者: admin   总分: 72分  得分: _____________

答题人: 匿名未登录  开始时间: 24年03月31日 09:50  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.10: A particle travels at a constant speed around a circular pat 03t phn:ztw3eh 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 withou3xg/o -uyth (it reference to a particular directi3/ g tyo(uihx-on 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 arount/z -vtrd9e 2)lercvn1 n4g8eh,i* mrd a circular track at an average speed of 50 m/s and then completes a s r2r1z/ve)tt-n4lngc e*v,d8em 9h riecond 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 0.8r dr0gc8 /(;ir-w0:keaqbkg b 0 m in 1.0 s at the constant velocity. If it continues, how far0/k(reg bw :a8irqck b ;g-0rd 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 30-kg plank that is slidinyx:d)ggre .0 iec9 li9g 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 te.i gyc )9grd:il x0e9he 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 80q g4l(7fg*pmk km/h and 400 km at 100 km/h. What is the ave fg7qkm*p l4(grage 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 traveling5 ivi k* 7lhd-(yay5ql along the x-axis. The graph showylki 5d i5-aqvy l*(h7n below is a plot of the car’s velocity in the x direction, $v_x$ versus time $t$.
During what time interval was the car moving towards its initial position at constant velocity?


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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.21: This question refers to the motion of a toy car traveli.2fe 78s wu0xlcb t1i: 5bugttng along the x-axis. The graph shown below iwbl ti 1:tcgexf8 572bs0tu u.s 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 th mklk -i 18jnb,g4)csec,.boze x-axis. The graph shown below is a plot o,1ilkjc, 4e o.z-g s8)n ckbbmf 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 duckku.mgy6 +yuz 9i4fqz, 5 sub/h flying due south for the winter. At what point dq 5y,gbk.uy+9hufz/um 6i4 szid 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 sim8 ,tntqv9- spi4(1xx 0aggthows the position and elapsed time of a car starting from rest and uniformly accelerating in a straight line. What wav8 is9it,10-qx4 (xtn a tgmpgs 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 r / htok+d-z;tenv2i10jkwr5yefer to the diagram below which shows the position and elapsed time of a car starting fr1t r;0 n2hoek+z-dk/y5t wvij om 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 fo/vs :lpt2uze5 r an object with the positiont5us:l pz2/ ev time 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. An ideal eljkt2 7 kp6zpi y88kpjeh 9s0lz 65xqc*astikppk6lz 0cjhzeqy it8 *8j5 67ps2 9xkc 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. A1e cfys*(8 sopz9hbhw-c2 6ek(hnp2z n ideal elastic rubber ball is dropped from a height of about 2 meters, hits the floor and rebouneypcwse6 hb 9zs2 chkhf1z82n - o*p((ds 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 caniq+ t k39d.zjj travel 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 red sq koeq-pk5 d8206apfers 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 followi soz2o+hv qn85zi jc 7kr;4pf.ng 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 following scenahdls rhld csf8 jh5u,985bc xrt- o9t0i9 (ip)rio: 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 tx asrb8qq1x wuu.+ q 22bgg/t.o the following scenario: At $t_0$, two cars moving along a highway are side-by-side as they pass a third car stopped on the side of the road. At this moment the driver of the first car steps on the brakes while the driver of the stopped car begins to accelerate. The diagram below show the positions of each car for the next 5 seconds.
If car #3 continues to constantly accelerate at the same rate what will be its position at the end of 6 seconds?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.33: A small ball vc,icm *8kh(s gxacg* ah3a1 om658mlrolls down a ramp, across a horizontal table top and off the table edge. Which of the following would best represent x m chah,k 5lc*gmv63msa(g8 *8coia 1a 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 dista5w) x)r th)6+ dmdofxknce and time for an objec)txr xm5kdd) h+o6fw)t that is moving along a straight line. What is the instantaneous speed of the object at t = 5.0 seconds?


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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.02: The graph represents the relationship between distance and time ;r9x- .yvoep:uj,d mgfor an object that is moving along a straight line. B9r ,juxyp;o:. g me-vdetween 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 Earth with an t1f (vrdc)cnpf(0/ r. gs,bfoinitial 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 reaches the groundnrv r 1fof/.g p (cs)tcb(0fd, 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 caaea)qmho8 r+9 r starting from rest and uniformly a)erom8h9a + aqccelerating across the floor. The time and distance traveled from the start are shown in the diagram.
What was the average speed of the cart between 0.1 seconds and 0.3 seconds?


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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.12: The diagram below represents a toy car starting from rest and uniformat7b9f18e 3 fqzc gmbm6ro6-l0y r6 ubly accelerating across the floor. The time and diseqztm8b7rgmfo96yc1b0 66-l f urab 3tance 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 u u mi(hk.)c,krepresents a toy car starting from rest and uniformly accelerating across theu k)i,mkch (.u 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 position of the ba 2 kh7mgn pkfh2b44zw(ll ea z 7wm2fkbn4ph g(hk42ch 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 acceleratis8 hjcr,):m +x fciv2yng ball. The position of the ball each second is +iyv8xsm2 jh:, cc r)findicated.
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 iecbzl;q 86s 5dn a straight line is shdlcs;z6 be58 qown in the graph below.
What would be the acceleration of the clown at 5 s?


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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.18: The motion of a circus clown on a unicycle moving in a9 *z+gw4k x7ao-4sbximj6 p wd straight line is shown in the graph bespi9g 4wbm- xx6j+4 7 kzad*owlow.
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 frd8x1 i3bnzu 7tra :jo*eely in a vacuum 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(l4n tbu9q;:in otwmqm1w4. /fuegm4 a marble on a table top for 10 seconds. For which time interval(s) did the marn qlfwmm1mnbwe.9 ttu/q4 :;4go4(uible 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*+kt 0be u4hmm table top for 10 seconds. For w0*b4h+ketu mm hich 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 dmft6 x-5,eqd6t 417d mbsja ifescribes the motion of a marble on a table top for 10 seconds. What is the marbles average acceleration between fa6t7 5bm6qs-im e1jt4x ,fd dt = 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 rec1o.ebpmi6 th:2 qc3sws(m ;xst 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 yko i+ a.hf h;-mlkj8-straight downward 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 fosr p*q*:- c6mhi dxj,dllowing graphs could correctly represent the motion of an object moving with a constant sqd pi *jmrh:*scd-, 6xpeed 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 carz+u9ybx.bix) zj 75ds across the floor for 10 seconds. What7z9d+bs.yijz)u5b xx 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 fl 5nq6nu 6 j0tciom)-uzpx:s8yoor f )ux6y0z: cjt-m unn8p6qsoi 5or 10 seconds. What was 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 accompanying graph describes the motion of a tm i q2 gcy16clckbg8,o81m0ezoy car across the floor fo2mcgiml08 zbc eg 6,18koc qy1r 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 uni s3;lq /vnsee1 m+j+ecformly from 0 km/hr to 60 km/hr in 4.50 s. Which one of the following choices best represents the acceleration of the cas3qs1cj+lne em;ve /+ r?

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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 velocitypzego)p kg,bup 49g jy 5 6t-63ahjdw- versus time curve shown. Which of the following statements regarding its motion is NO) kzw 4g-p-jyut5jp3d6 ,6h 9 gbpaeogT 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 alono5djgcvtls4dk6:eh3; ;) o wcg the x-axis according to the velocity versus time curve shown to the right. When does the hwos4dk;o )l;gev3c :dtj c5 6car 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 tenn ccs p6tt+xj/)is ball is moved so that the angle between thtps+ xc) 6tj/ce 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 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 kilometers38n2,qq v.ry *g6tg kk gdq-gd apart and traveling toward each other.t62r.g 3yq nq8d*q,k g -gvkdg
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 the acceleration is positive and6fa fs 0v01.i eu3twgl1uy9t t increa11wsyl0 f uufeva30i tt9.6 gtsing

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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 averag1dyf0h6; ld1vxae )vyy1l 9mke velocity is

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.18: For any motion in two dimensions, which one of the following choico ivt7z1+bh yz/d/s3h es identifies quantities that must/ 7ivdhzy o13tzh b/+s 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 move4s 0t+ekry5iutoq +t :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-pq5fbu/0 run4 time, $y\;vs\;t$, 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 forey, /0 hmar+eb total time T in ah+emyrbe0,/ two 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 6+i 6n1v6l 6mxpgdid rvs. time graph for the motion of a car on a straight track is shown ivpn66xlgd +6r 6 im1din 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 a stra (- d/stz,lzqqight track is shown in the diagram. The ql tzds,zq/-( 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 oedr h ull;ky:aj44 6qid;n: *teu5q ;ebject given by the position vs. time graph shown. For wu5eq e;l;4uk l:na4tjdi hr e6:y dq;*hat 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 or9g*tsh .cnmz.kk1 v88p+ hp lyn0ck (bject given by the velocity vs. time graph shown. For which time(s) is the acceleration of the object equal npcy*m088hrk lvn9h(. gtskzc.p + 1kto 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 fj0u jzwv6)b rukfn03 8or a fixed time interval of an object’s motion, what qu)63nv fz0b u0ju8kjrwantity 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 lini 9ue7s z2yfh0tx4c l+e 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 trip1bsc k 8s8 jywpy 0.ck:hp8y2u 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 grov)h+ eeb)m6vcund 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 frgf0uu,k jrqsz0v8n 7 c y*fr36om 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 graph of a particle moving along a horizontal axis it0p yo,c)z5k picn7v5 s shown. What is the total distance traveled by the particlno)ppiz50kvc 7c t5 y,e 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 followibi454y/ p3 hh 5dhqjddng choices correctly identifies all of the listed sitdqdbd3ihy 5/jh4 4h5 puations for which there is a non-zero acceleration?
Situation I : A point object moves in a straight line with increasing speed.
Situation II : A point object moves in a circular path with constant speed.
Situation III: A point objects moves in a circular path with decreasing speed.

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.32: An acceleration vs. time graph for an object moving alon +47fqlwzne7 5a7e d(yam yr(qg a line is shown. The object starts from rest at time t=0 s. At what time(s) does the object atte 7y(q54 ayldqw7am7 (en+rzfain 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 velo )l)s v1,axkrysf)9x2kum5c g city along 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 the v)1 9sgkyu)lk5 ,mf r2xsaxc) 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- jxk ge(1eahxzour/hu6mk69; +uc 5f track, each with constant acceleration. At an instant of time, the information about the cars is s (+69fjz cerx k 1-humx5ugk6;uho/eahown:
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 idj7fc c(c 9e+mhj7 7fxu/y3q $x$, 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, whcxp:yxj:i7 w9 ich one of the following choices correctly describes the relationship between the avcx wy p9ix:j:7erage 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 choices best describes the insta(ba0n3z mlz u f+jau26nts of time, at which the car and taaf(l 36b2 zuj 0+mnzuruck 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 o:triii: h(6ek rigin and will move along the x-axis. The acceleration vs. time graph for each car is shown. Which one of the following:i tek6 i:(irh 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 ofrdx jc73 mwb/ 16so+it an object moving on a horizontal line is shown. At what time(s) is the object movini1w7xjrd63/cmtb so+ g 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-axisgi :d3 xix v6tz2soy(mex+s/) following the position vs. time graph provided. During what time interval(s) does the mass have zero acce3x i+miegz2ds( xyt6 vxos:/)leration?


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