无忧得胜-网上国际课程 (5edu.win)

 找回密码
 立即注册

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习:Impulse and momentum

 作者: admin 发布日期: 2024-08-07 16:03   总分: 17分  得分: _____________

答题人: 游客未登录  开始时间: 24年08月07日 15:54  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.16: A car of mass m, traveling at speed v, stops n rrba1:.8jtqin time t when maximum braking force is applied. Assuming the br1b.8 rq:rjta naking force is independent of mass, what time would be required to stop a car of mass 2m traveling at speed v?

参考答案:    

标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.04: When the velocity of a moving object is doubled, its_______iw cet,)b:isx5s also doubled.e xw,:sb5cti)

参考答案:    

标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.06: Impulse, Fnet s8hs3y /dx nex70chvz+ljh 01$\Delta$tis best related to:

参考答案:    

标记此题
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.05: Which one of the followif 6g.aop5d .whng choices is most closely associated with the following observation about an isolated object: “The linear momentum of the object is constant. .pf .hw6ogda5”?

参考答案:    

标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.21: The change in ;q+wfph3 s/owbq /;malinear momentum of an object is always in the same directio+3; hb/fq s wam/qwp;on as the

参考答案:    

标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.08: How long must a 100 N net force act t.3k/rpv)cagm(61 z 1w mcsqeho produce a change in momentum of 200 kgm wgzs.krhma cq3)1c( e6 v1p/.m/s?

参考答案:    

标记此题
7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.29: P and Q have the same momentu2x8 q1 *ltx.moissj3vm. Q can have more kinetic energy than P if xixo3m qtj l.2s8v 1s*it:

参考答案:    

标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.26: A ball with a mass of 0.50 kg and a speed of 6.0 m/s collides +zu*dy)n *.v7;htw ipj-xa6d5d lf zhperpendicularly with a wall and bounces off with a speed of 4.0 m/s in the opposite directi 7jiwz;n6 dpl* f+zx5-h vu)dhadt.*yon. What is the magnitude of the impulse acting on the ball?

参考答案:    

标记此题
9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.08: A 50 kilogram gymnast falls freely from a hpvkma m,as 00*eight of 4 meters on to a trampoline. The trampoline then bounces her back upward with a speed equal to the speed at which she first struck the trampoline. What is the average force the trampoline applies on the gymna*va p0sm ,am0kst?

参考答案:    

标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.27: A 2.0 kg mass moves at 10.0 m/s when it has a collision in space. The mas3f2 f rcl :zwia -51*u:zcp3immh9bvxs’s speed was unchanged, but the direction of itsi*u-i mz 5 2rmfcx3p9zacfb: hv3w:l1 velocity was altered by $80^{\circ}$. If the collision lasted 0.25 s, what was the magnitude of the average force exerted on the mass?



参考答案:    

标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.13: A bat striking a 0.12ky-by*9fc7aybmh j;3 5 kg-baseball is in contact with the ball for a time*9k;mb7yfbj3yach -y of 0.03 seconds. The ball travels in a straight line as it approaches and then leaves the bat. If the ball arrives at the bat with a velocity of 4.5 m/s and leaves with a velocity of-6.5 m/s, what is the magnitude of the average force acting on the ball?

参考答案:    

标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.43: An object of mass 4.0 g has atotal exbe*9iv.; vpkinetic energy of 100.0 J and an x-component of linear momentum equal to 24.0 kg.m/s. The .v v*bpe9xe; iobject is moving in the x-y plane. What is they-component of the object’s linear momentum?

参考答案:    

标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.05: At an instant of time t, a point object of mass M bdvj /;czg ez4e38v4i moves with velocity V, has acceleration a, and is at position (x,y). In what direction must the linear momentum of the object bzg;8 4bvv/ej4d ci3 zee directed at this instant?

参考答案:    

标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.32: A rubber ball of mass 2.0 kg fall* +un45jotstgjw4f - ding straight downward hits the ground with a speed of 0.90 m/s and then rebounds straight upw4*otfu5n wdgtjj4+ -s ard with a speed of 0.60 m/s. The collision time of the ball with the ground is 0.25 s. Treat g = 10 N/kg.
What is the magnitude of the average acceleration (in units of $m/s^{2}$ ) of the ball while it is in contact with the ground?

参考答案:    

标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.33: A rubber ball of mass 2.0 kg falling straight downward hits the gr5u0hno flpwq(r;q0 l6 ound with a speed of 0.90 m/s and then rebounds straight upward with a speed of 0.60 m/s. The collision time of the ball with the ground is 0.25 s. Treat g = 10 N/kg5 f ;l0q6(rpuqwnoh0l.
What is the magnitude of the average force (in units of Newtons) exerted by the ground on the ball while they are in contact?

参考答案:    

标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.12: A box of mass 5.0 kg is being pushe1h/ 6rg7bjhjo d to the right across a horizontal surface while a constant frictional force of 8.0hoj/7gbr6 hj1 N acts on the box. At some instant of time, the box has a speed of 4.0 m/s and an acceleration of$3.0\; m/s^{2}$ . What is the magnitude of the net force acting on the box at this instant?

参考答案:    

标记此题
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.12: A box of mass 1sz 2py2k fxj 3qu8777r- i.qwrl6k pcr2.0 kg is being pushed to the right across a horizontal surface. When the box has 12.0 J of kinetic energy, a 12.0 N net force acts on it. Which one of the folr6 pilrw7y. fkxrju2s q778-pz 3k2cq lowing choices best represents the magnitude of the linear momentum of the box at this instant?

参考答案:    

总分:17分 及格:10.2分 时间:不限时
未答题: 已答题:0 答错题:
当前第 题,此次习题练习共有 17 道题
本平台(https://autodiscover.5edu.win/)支持练习,作业与考试(自动评分)三种模式,群组成绩统计排序导出,题目动态变量实现同卷千人千题
如果您对本系统感兴趣,想加入我们或者想进行任何形式的合作,请加微信 skysky1258

浏览记录|手机版试卷|使用帮助|手机版|无忧得胜-网上国际课程 (https://5edu.win)

GMT+8, 2026-7-29 18:03 , Processed in 0.182807 second(s), 64 queries , Redis On.