题库网 (tiku.one)

 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: 匿名未登录  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 in time t whb rp ga)*(t:jn(cua/nncv73 i)wmdo ; en maximum braking force is applied. Assuming the braking force is independent of mass, what time would be required to st pta:w i3bn(o7nvrgdm);*n)auc c/ (jop 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)iqt nv(-yz 8s_______is also double)nv (- szq8tyid.

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, Fne6buha edygb:07v q+ux g*h.3mt $\Delta$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 following lwot7fo3f+ s 0choices is most closely associated with the following observation about an if+ 0low3ostf7 solated object: “The linear momentum of the object is constant.”?

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 linear momentum of an object is always in the same direz/x f(2oq wa9vction as ox2q(/9f wzav 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 4 j js/bz91vg6: powkwact to produce a change in momentum of 20p:jo1b94w sjwv6/k gz0 kg.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 momentum. Q can hat30 -jowy8cxu ve more kinetic energy than P if it w-jt83 oyuxc0:

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 pesew nnfop8la a9( o2n1ie9 r(t0n s5m;rpendicularly with a wall and bounces off with a speed of 4.0 m/s in the opposite direction. What is the ma;w9lnopete n59 (o na1sn(08 2a misrfgnitude 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 heigh (anhlq )f*x9(bbmtz.i 9n1 7abkk +yst of 4 meters on to a trampoline. The trampoline then boubynq ( nx9 t1fb*ab(zlmkki.) a9h +7snces 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 gymnast?

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/h9sfom s( .l2:ixd9rps when it has a collision in space. The mass’s speed was unchanged, but the directionp.:2frxdm9s(i hos9 l of its 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 0.125 k oyq6 a nz;i0a.k42da5 zoluw*g-baseball is in contact with the ball for a time 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 thzo6li wn.a uyda5a;oq z*042ke 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 kinetic energy of 100.0 J and an7z0 m /m-7:wgcb *pf ( dnk5kdrjv*wmm x-component of 0zjr dfm*/*c:n7m wd5pgk 7mmbkw-v (linear momentum equal to 24.0 kg.m/s. The object 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 95zqh a :o9oxztime t, a point object of mass M moves with velocity V, has acceleration a, and is at position (x,y). In what direction must the linear momentum of thx:h5 z oqazo99e object be 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 massu8x4 nzfc -ix5fnc8p. 2.0 kg falling straight downward hits the ground with a speed ux8i -nf. n8pzc5xcf4of 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/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 ground ac39uhstz, 14czwy /ujcu0)a 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 bazccua0s93z uy t,4u jhc)wa/1 ll with the ground is 0.25 s. Treat g = 10 N/kg.
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 puy s8uj37on +dgmw.kw 8shed to the right across a horizontal surface while sugy88wn o m3+wd 7jk.a constant frictional force of 8.0 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 12.0 kg is beinupv*j+ v4aa /rku1p6cv ief09g 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 followingrc916iekjv4fu pa* 0p+vauv/ 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
    本系统支持习题练习,作业与考试三大模式,作业考试自动评分,成绩排序一键导出,可设定动态变量同一试卷千人千题
    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|使用帮助|手机版|切到手机版|题库网 (https://tiku.one)

    GMT+8, 2025-4-25 14:04 , Processed in 0.125749 second(s), 56 queries , Redis On.