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习题练习：Physics Bowl by Topic 3: Kinematics - part II Uniformly Accelerated Motion
本习题练习试卷来源于无忧得胜-网上国际课程 (https://5edu.win)， 为试卷打印版，您也可以在网站平台(https://autoconfig.5edu.win/)直接 访问本试卷的在线电子版并查看正确答案与解析，搜藏保存任意题目到收藏集。 访问方法: 平台首页左上角"通过试卷号快速访问"输入试卷号 396，并点击直达试卷；或浏览器地址栏内直接输入本试卷链接 https://autoconfig.5edu.win/test396.html  教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。
 作者: admin    总分: 46分  得分: _____________

答题人: 游客未登录  开始时间: 24年04月05日 22:23  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  
  94.01: Starting from rest, object 16ob pfx1v2(2o (yb mad falls freely for 4.0 seconds, and object 2 falls freely for 8.0 seconds. Compared to object 1, object 2 fy2a2 of1xb6( m bovp(dalls:

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.02: A car starts from rest a o7l.5c qp1 1v,)ghqj*c dgurdykml baa /02m8nd uniformly accelerates to a final speed of 20.0 m/s in a timec5b )1yl m/.0mqgduaah,prdkq8g7j 1o2 vl*c of 15.0 s. How far does the car travel during this time?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.03: A ball is thrown off a high cliff with no hxxnf (b *7smc7orizontal velocity. It lands 6.0 s later with a (*x 7b7 nfcxmsvelocity of 40 m/s. What was the initial velocity of the ball?

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.27: A rocket near the surface o4ypp*eu(5l4 yv2 uzko t3soz( f the earth is accelerating vertically upward at yuv 3t o(yoszl*kpz 25p4(e 4u$10\;m/s^2$. The rocket releases an instrument package. Immediately after release the acceleration of the instrument package is:

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.13: A freely falling body is found to be moving downwards aw4 s3.tvxn0fs.owj agd,t 5v5cno9d;t 27 m/s at one instant. If it continues to fall, one secondtan;5wdo0j 5d,93wx.c g svts.4v nfo later the object would be moving with a downward velocity closest to:

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.39: A car starts from rest and accelera3: hu3szo)9mxh bh*dj tes at $0.80\;m/s^2$ for 10 s. It then continues at constant velocity. Twenty seconds (20 s) after it began to move, the car has:

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.17: A ball which is dropped from the top of a building strikes the groun.f 4qwqkp+i4 w uszj:cs,7xh*d with a speed of 30 m/s. Assume air resistance can be ignored. The height of the bu4,fzki qw x4qc*p: suhj.s 7+wilding is approximately:

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.09: At a certain time, an object in free fall has velocity 4.0 m/s in qidvf7p y/ (f+the upward direction. What is the approximate velocity of the object one secofdp/y+v q(7find later?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.14: How long must a ,q* mhr t.m;78wj1evuw 6t dvh$2.5\;m/s^2$ acceleration act to change the velocity of a 2.0 kg object by 3.0 m/s?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.15: A freely falling ob.n9 vnq5f ga:fject is found to be moving downward at 18 m/s. If it continues to fall, two seconds later the object would be moving wit.f5vng a: nfq9h a speed of

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本习题练习题目来源于无忧得胜-网上国际课程 (https://5edu.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.02: A small object is released from rest and falls freely f1g- 0nj:sxs fsor 4.00 s until reaching the ground. What was the height above the ground f :nss-xjfs0g1rom which the object was released?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  11.06: A ball of mass =0.100 kg islfc( dsa.3u2s launched straight upward so that it rises to a maximum height of 12.0 m above the l.dc( a2f s3sulaunch point. Ignore air resistance. When the ball reaches its maximum height, which one of the following choices best represents the magnitude of the net force acting on the ball?
D 10.0 N
E 12.0 N

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  11.07: A ball of mass =0.100 kg is launched strac40s4hk pk;7 0u vuce suv5l3v9s,aju ight upward so that it rises to a maximum height of4ep;s 0v9j4uu ,lks05a scvuuvkc h3 7 12.0 m above the launch point. Ignore air resistance. Approximately how much time does it take the ball to reach the maximum height from its launch?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.31: An object slidif f-.k xe3xhi2+y:fyzg:o3 .q ueels8ng down an inclined plane has speed 0.40 m/s two seconds after it begins to slide. Approximately how far does it travel in three secon.:eg3-x ki3u 2yo .yh:se 8efxlfz+fqds?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.40: Coin I is thrown upward from the top of a 100-m tower with cwm30vpr *5 rwbl)qf qst mr(z9 8c6x6a speed of 15 m/s. Coin II is dropped (zero initial speed) from the top of the tower 2.0 s later. 56m6rrq3z(p) l vqmf8x wwrt9c sb0c*Assume g is $10 \; m/s^2$. How far below the top of the tower does coin I pass coin II?

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.04: If a ball is thrown directly upwards with twice the initial speed of ano6 jtuvd79nftg0x 5u:x ther, how much higher will it be at its9xdg7fvtn5tj 0 xu:6 u apex?

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.30: A box falls to the ground from a delivery truck a d8cqmr /:fw(traveling at 30 m/s. After hitting the road, it slides 45 meters to rest. How long does it take the box to come to rec /afw8 m:dqr(st?

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.29: An object is thrown upwards with a velocity of 30l0:-fth/c2 nplw.o s5fsx f:q m/s near the surface ofqfxh2:l5o0fs/p ws- tc.fn l: the earth. After two seconds what would be the direction of the displacement, velocity and acceleration?
displacement velocity acceleration

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.10: Three stones of different mass (1m, 2m& 3m) are thrown vertically upw6vs .q+rmx j58iyf0ffard with different velocities (1v, 2v& 3v respectively). The diagram indicates the mass and velocity jr0xq8 y+fs5 f.mvi6fof each stone. Rank from high to low the maximum height of each stone. Assume air resistance is negligible.


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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.25: Two point objects are launched straigsxmyj9 3u:d9k3y vd. oht upward with identical linear momentum. Object 1 has mass M and reaches a maximum height H above the launch point. If object 2 has mass 2M, what is its maximum attained kjyx dymu dsv :.3939oheight above the launch point in terms of H ?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.28: A rubber ball u6dm )/n;uhi4q isuu1v25gqw-5uzs tz ,ga3tbounces on the ground as shown. After each bounce, the ball reaches one-half the height of the bounce before it. If the time the ball was in the air between the first anz6 ivgh5agu qu1s unu4q t-t)w 5,zmsiud2;3/d second bounce was 1 second, what would be the time between the second and third bounce?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.21: At 1.94 s afters(o7z:t. ,7drm c g3z,isx hwe launch, a projectile in free fall achieved its minimum speed during flight. If that minimum speed was 15.dr3 iw7t.:x7z (hz,ss cm, goe0 m/s, what was the projectile’s initial angle of launch from the horizontal?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.02: A pebble is dropped from a high vertical cliff. The collision of teu(rvqosc 1gr* ;q* vwa;(h -qhe pebb*vq vh;(; rgr quawqc(es *-o1le with the ground below is seen 1.50 seconds after the pebble is dropped. With what speed did the pebble hit the ground? Ignore air resistance.

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.03: Three students were arguing about the height of a parking garage. Onektvr6rw w -;whr;jr-; student suggested that to determine the height of the garage, they simply had to drop tennr 6r- wvtk;wr-hwj; ;ris balls from the top and time the fall of the tennis balls. If the time for the ball to fall was 1.4 seconds, approximately how tall is the parking garage?

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.07: A snail is moving along a str y3b50p:nleey)xe nwvm-, i c/aight line. Its initial position is x0 = -5 meters and it is moving away from the origin and slowing down. In this coordinate system, the signs of the initial position, initial velocibwy e,c yn/e-0i5lve3:nxp)mty and acceleration, respectively, are

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.38: A small point-like object is pull)e 5b)ahx.3pdafpd s0 -ro7cqed downwards by gravity (down the plane of the page) but is constrained to exactly follow each of the frictionless pathways shown. Rank these three paths from shortest to longest in a5d ebr ppch3a. x7o)f)-sqd0terms of the amount of time (T) necessary for the object to be released from rest at point A and travel to point B. Assume that in changing direction that there is no loss of energy and that it takes negligible time.


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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.13: A rock is dropped from the top of a tall tower. Ha)c ir9+4k vt4+dmtxn gz il(u7lf a second later another rock, twice as massive as t 9g47v() r4zckd+nlu i+txmithe first, is dropped. Ignoring air resistance,

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.18: A cart is initially moving at 0.5 m/s along a track. Th3k mmnk9 :0tuce cart comes to rest after traveling 1 m. The experiment is repeated on the same track, but now the cart is initukm:mkc3 tn09 ially moving at 1 m/s. How far does the cart travel before coming to rest?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.11: A cart is initially moving at 0.5 mf(38:+o ecn l i mn8.lg,elfhx)dm vtc/6e 3wy/s along a track. The cart comes to rest after traveling 1 m. The experiment is repeated on the same track, but now the cart is inv3(+le8c3fme .e6x8li goflt /mc yd)n,n: h witially moving at 1 m/s. How far does the cart travel before coming to rest?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.03: A dog starts from rest and runs in a straight linfza e8:0m s).qab2t mfe with a constant acceleration of 2:)zfbs8 ta2 f 0aq.emm$.5\;m/s^2$. How much time does it take for the dog to run a distance of $10\;m$?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.29: A ball initially at rest falls without air redjty 6x i4fl j o34jdc7nt4r0asb,n-:sistance from a height h above the ground. If the ball falls the first distance 0.5h in a time t, how muchts0-: c,dbnnj6 4f ayloixdjr4j73t4 time is required to fall the remaining distance of 0.5h?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.38: Two objects both move and ufgycju b(erd4n 78y30niformly accelerate to the right. At time t=0,the objects are at ten ybfr duj4yc3 807g(he same initial position. Object 1 has initial speed twice that of Object 2; Object 1 has one-half the acceleration of Object 2. After some time T, the velocity of the two objects is the same. What is the ratio of the distance traveled in this time T by Object 2 to that traveled by Object 1?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.26: An object is thrown horizontally with speed 10.0 m/s q3qdq( ig55vq from a height H above the ground. The object reaches the ground with a speed ovq3d i(55qgq qf 20.0 m/s. Which one of the following choices best represents the time of the object’s flight to the ground? Ignore air resistance.

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.10: An object is thro ;2)2 ktxumwgoodu of z58k831vm4mgt wn straight upward. The object remains in free fall until it row3 5x 18)goo m4udu8f gzt ;mkv2m2kteturns to its initial launch point. Which one of the following graphs could represent the velocity of the object as a function of time during its flight?


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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.03: An object is dropped into free fall. Through how many meters does u +.s3gr n8km/c2sqtc the object fall during the firstsrksntu3 c.+/qc m2g8 3.00 seconds of flight?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.02: A box uniformly slides 7.50 m to rest across a flat surfacxadq,bg bz0d592+t eze in a time of 12.0 s. What was the initial speed ofbdzae0 bt92,+qxzd5g the box when it started its slide?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.07: Starting from rest, a cart uniformly accelerates to a6) cn0i3usi69.cburcf .peaj speed of 7.60 m/s in a time of 3.00 s. Through what diuib6icc.. 063 pr) jus9fn ecastance does the cart move in this time?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.16: A toy car initially moves to the right at 60.0 cm/s. Five seconds kkp1nul n354glater, the car is moving at 40.0 cm/s to the left. The total displacemp4kl 13gun 5knent of the car during this time is 10.0 cm to the left of where it started. Which one of the following choices best represents the magnitude of the average velocity of the car during the five second motion?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.17: A toy car initially moves to the right at 60.0 cm/s. Five)ug8jjy anel)/dm 5x* seconds later, the car is moving at 40.0 cm/s to the left. The total displacement of the car due) jn)/d*8 g a5ymxljuring this time is 10.0 cm to the left of where it started. Which one of the following choices best represents the magnitude of the average acceleration of the car during the five second motion?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.33: An object moves with constant acceleration start:g:i4bmp q rx9ing with velocity $v_0 = 5.00\;m/s$ and ending with a velocity of $v = -1.00\;m/s$ in a time of 3.00 s. For this motion, what is the average speed associated with the object?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.05: An object initially is moving upward while in free fall. Which onot hrc pgpgk(3d+ tpb20k 4((wsm;n,pe of the following choices best representw34g(kgp;0(k hosd2 m crppp( tbn+,ts the direction of the object’s acceleration during its flight?


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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.26: An object moving only to the i d:; 10* h-oqle6sd m.yjmfqnright completes a 20.0 second trip in two stages, I and II. The average speed of the entire trip is 10.0 m/s. For stage I, the object moves with a constant velocity of 6.0 m/s for 12.0 seconds. What constant acceleration must the object have during the 8.0 seconds odq:1d6 n.; mhy*fjql -i0s omef stage II?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.32: An object moviklsi54c u4fp 25t,vnnng along a line completes a 20.0 second trip with an average speed of 10.0 m/s in two stages. During stage 1, the object moves with a constant velocity of 6.0 m/s to the right for 12.0 seconds. What constant magnitude acceleration directed to the left must the object have during the 8.0 secp4lk, uin25vn 4t5cs fonds of stage 2?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.33: At the top of a high cliff, a small rock is dropped from rest. A ball du+k -o*e-ojn1 agqm:is launched straightk1o: dq*--+jn mu ogae downward with an initial speed of 36 m/s at a time 2.10 s after the rock was dropped. When the ball has fallen 28.0 m further than the initially dropped rock, what is the speed of the ball relative to the rock?

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.36: On a straight road, a self-driving car races with ac 5lnfjm;sj 72b7 ih6m robot. The robot accelerasmj72i;f7c5mbl hn j6tes at $8.50\;m/s^2$ until reaching its maximum constant speed of 15.0 m/s. The car accelerates at $5.60\;m/s^2$ until reaching its maximum constant speed of 25.0 m/s. The car and robot start from rest from the same location. What is the maximum distance that the robot leads the car during the race?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.44: A ball is launched vertically upward. n 9aql+g6u4 oh- ukgh5:ahzp6The vertical position of the ball 0.70 s after release is the same as its vertical position 4.10 s after its release. At what time is the object first at a vertical position that guq49lauzg a-o+h:k5hh66 pn is one-half of the maximum height it obtains during its flight?

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