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 indcswblnkwl )(ms(x+q/ .x 3x 8 time t when maximum braking force is applied. Assuming the braking fx)b( s ln3lwxxqw 8d cm+(/.skorce 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 hspzhfx)p7+o(rrh -/u +sz. p moving object is doubled, its_______is also doubled.+f7+ rsho-z.x/zhpr (u ph)sp

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, Fnensx g l/s,d4 z )i8dp4gmk/4nut $\Delta$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 choices is mostegle;b/ kgz1 mwqeh9cckaf 5i-k/b g;23 0cp) closely associated with the following observation about an isola0e- kbwfb p/kg)g 5;zh2ecl emi cc k19qg/a;3ted 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 momentumvtyi+)ra:px ef/ 4q2f of an object is always in the same directio at2fv e/y)f :qrxpi4+n 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 to produ(u h j:-5nfnj,ehuu bcb;kl i8rz,5b-ce a change in momentum of 20, 8 ;u- (rujb5nkijh:n l-czu,hebb 5f0 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+gnl pz/0b,b i same momentum. Q can have more kinetic energy than P if ip/z bil,+gb 0nt:

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 spcyll0g s2 ak4,eed of 6.0 m/s collides perpendicularly with a wall and bounces off with a lsy0k 4cl2,agspeed of 4.0 m/s in the opposite direction. 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 fre9) pzsv8c+kok3n 2qoc3.m tdom a height 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.c9tdvz+ mkoscn o2. 3)p8eq k3 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/s when it has a c8i - 9unl o+mx(4a9l yqyw+kgpollision in space. The mass’s speed was unchanged, but the directp4 (9w8l9oi +g nyulx-qk+mayion 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 kg-baseball is in contact with the ball for ax l)jx )f4nq./qomw +a0fmet3 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 l 0tfqw.j )+3x/ xf4mon)qame 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 kinetic energy of 100.0 J and an x )5lnb90wa:bgg( vhgu*0vvwn i4v 8mz7g )mxm -component of linear momentum equal to 24.0 kg.m/s. The object is v7u4:8nm9 vi()0lmwgbvb xha50g) g wzgnmv* 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 movv82xn:y4 b kxvr4wb 26ijy f3les with velocity V, has acceleration a, and is at position (x,y). In what direction must the linear momentumv:r6 nvk22y4xb j 4xl3fby8wi of the 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 mass 2.0 kg falling straight downward hits the ground wi.ar:,yff 5oe+ w iah7yth a speed of 0.90 m/s and then rebounds straight upward with a speed of 0.60 m/s. Thf7 ha+yiyw,:a5oref. e 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 fallin;ild c,d/ z0zrg straight downward hits the ground with a speed of 0.90 m/s and then rebounds straight upward with a speed of 0.60 m/s.z cld r,/z0di; 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 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 pushed to the right across a hori/u7ui:nkhuqdta*i)u fp9k *9vv hgp /( ) b)bwzontal surface while a constant frictional force of 8.0 N acts on the box. At some 9it7*np hw /p gbuuh( kiu :du)f)9/akq)vv*binstant 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 being pushed to the right across a horizontagfgbhl0c6 it1iw d.d0 hm d*lm)+hw1,l surface. When the box has 12.0 J of kinetic energy, a 12.0 N net force acts on it. Which one of the following choices best represents the magnitude of the linear mh+ii)c m mw wlhd6 0df,*bt1hl.dgg10omentum 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, 2024-11-22 00:29 , Processed in 0.154079 second(s), 55 queries , Redis On.