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:Physics Bowl by Topic 4: Kinematics - part III Projectile Motion



 作者: admin   总分: 23分  得分: _____________

答题人: 匿名未登录  开始时间: 24年04月06日 08:39  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  
  07.14: An object moves to the East acwapcx9 ze5t5+g4 snu;p*kk ;yross a frictionless surface with constant speed. A person then applies acx45nge wak9t z;y* pp5k+u;s constant force to the North on the object. What is the resulting path that the object takes? A. A straight line path partly Eastward, partly Northward

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  
  07.15: Two identical mass objects are launched with the same speed from thfd4eg61osrr f,8o/e 1ps oq1ae same starting location. Object 1 is launched at a qo84se1rad16fs 1o/ rp,ofgen angle of $30^{\circ}$ above the horizontal while Object 2 is launched at an angle of $60^{\circ}$ above the horizontal. Ignore air resistance and consider the flight of each object from launch until it returns to the same launch height above the ground. Which object returns to the starting height with the greatest speed?

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  
  07.16: Two identical mass objec7z pxa5vyn-( cts are launched with the same speed from the same styc-x75n ( vpazarting location. Object 1 is launched at an angle of $30^{\circ}$ above the horizontal while Object 2 is launched at an angle of $60^{\circ}$ above the horizontal. Ignore air resistance and consider the flight of each object from launch until it returns to the same launch height above the ground. Which object experiences the greatest change in the linear momentum?

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  
  94.14: An arrow is aimed horizontaly*pkzo*k7 ;o oly, directly at the center of a target 20 m away. The arrow hits 0.050 m below the center of the t*7okypko ;*o zarget. Neglecting air resistance, what was the initial speed of the arrow?

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  
  03.05: Two arrows are launched at tjzhs2sqbh/m r zn7f2gn dj d6()8)a l2he same time with the same speed. A at an angle greater than 45 degrees, and arrow B at an angle less than 45 degrees. Both land at the same spot on the ground. Which arrow arrives fi hgzrns62sb al7)f(z28 jhmd) 2 djq/nrst?

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  
  95.19: A baseball is thrown horizontally from a cliff. p4d*zfh p2;bkwr tp + ;co38mi)fc/lo At the same instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, which of the followingw 2p fp4f8 3t+c;bkri) mo;hplo/z*cd statements is correct?

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  
  96.08: A ball is rolled off the scblc2: 3kh(w edge of a horizontal table. The ball has an initic kh 23sl:wbc(al speed $v_0$ and lands on the floor some distance from the base of the table. Which of the following statements concerning the fall of the ball is FALSE?

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  
  00.36: A ball is thrown vertically upward with an initial velocit5+n n 8fjujiyf0 8-yuty v and an initial kinetic enerj 85 unffy-0j+uiy8t ngy $E_k$. When the ball is half way to the top of its flight, what is its velocity and its kinetic energy respectively?

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  
  00.37: During a recent winter xs8xw* nec*w- storm, bales of hay had to be dropped from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude of 180 m with a constant velocity of 50 m/s and dropped one bail of hay every two seconds. It is reasonable to assume that air resistance will be negligible for this situation. As the bales are falling tnw8cew-x*xs* hrough the air, what will happen to their distance of separation?

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  
  00.38: During a recent winter storm, bpr1q6yv +)b.qruj alj ,7 b6pkales of hay had to be dropped from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude of 180 m with a constant velocity of 50 m/s and dropped one bail of hay every two seconds. It is reasonable to assume that air resistance will be negligible for this situation. About , v.bqjrbk pq)66j7l +yrup1 ahow far apart from each other will the bales land on the ground?

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  
  01.14: A football is kicked a distancp ro8nyz3wl00) +zaxz e of 50 yards down field. Neglecting air resistance, which of thex8r0z 3 +0wpzlao)yzn following statements would be INCORRECT when the football reaches its highest point.

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  
  03.10: A ball is thrown into the air .5bp*wpr yhosdm/9n 1 8csp: sat an angle $\theta$ as measured from the horizontal with a velocity $v$. The horizontal velocity of the ball will be directly proportional to which of the following

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  
  05.35: An arrow is shot hoq gv za7yak;676d*hea rizontally toward a target 20 m away. In traveling first 5m horizondg6 ;h*6v7eza7ka qyatally, the arrow falls 0.2 m. In traveling the next 5 m horizontally it will fall a additional

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  
  06.04: An arrow is shot from a bow at an angle of ut18cl2 kr+.kx nk jgq6 ,s,mz$40^{\circ}$ from the horizontal at a speed of 24.0 m/s. Ignoring air resistance, what is the arrow’s maximum height above its launch point?

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  
  09.20: A projectile launched from the ground landed a horizzsnk7y i2oj 3:ontal distance of 120.0 m from itszy:o37nik2 sj launch point. The projectile was in the air for a time of 4.00 seconds. If the projectile landed at the same vertical position from which it was launched, what was the launch speed of the projectile? Ignore air resistance.

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  
  13.14: A small ball innqi (5(y+ z ggdft:e hb05c5js thrown at an angle of $30.0^{\circ}$ above the horizontal ground with a speed of 20 m/s. To what maximum height above the launch point does the ball rise during its motion? Ignore air resistance.

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  
  13.43: A small 1.0kg mass is launched from the top of a cliff with sut7r ne o5 2zsro6v0 7wl7,pxqkr sl5+peed $V$ at an angle of $30.0^{\circ}$ above the horizontal. When it reaches the ground, its velocity is directed at $45.0^{\circ}$ below the horizontal. Which one of the following choices is the magnitude of the total impulse that was imparted to the mass during its flight? Ignore air resistance.

参考答案:    

标记此题
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.09: The free fall 5inw x(m6 e+()fbqr cxtrajectory of an object thrown horizontally from the top of a building is shown as the dashed line in the figure. Which sets of arrows best correspond to the directions of the velocity and (+ wexc) m6ix (5qfnbrof the acceleration for the object at the point labeled P on the trajectory?


参考答案:    

标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.41: A person throws auwd 7eumy/c y.b,s)( d small object from the top of a building at an angle of du( . s,bc/w)e7myy du$30^{\circ}$ above the horizontal. At the instant that the object returns to the same height from which it was thrown, at what rate is the speed of the object changing? Ignore air resistance and let g be the acceleration due to gravity.

参考答案:    

标记此题
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.21: An object is launched from the ground apl ii 5px7:jn56mey)0:ko o yvejs5e2t an angle of $60^{\circ}$ above the horizontal with a speed of 20.0 m/s. What is the magnitude of the average velocity of the object from just after launch until it reaches its highest vertical position during flight?

参考答案:    

标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.41: A small object is laj* o9rfhcz m..unched 30° above the horizontal from a height of 10.0 above the ground. If the initial speed of the object is.9rmfz cjoh*. 15.0 m/s, at what angle below the horizontal is the object moving when it reaches the ground? Ignore air resistance.

参考答案:    

标记此题
22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.32: A projectile is laun p k)faxakd5 ,:7t,jqmched at an angle of 40° above the horizontal with a speed of 30 m/s . How much time passes before the position of the projectile makes an ang7p kk:5jm,aaf)dqt, xle of 20° above the horizontal from the original launch point?

参考答案:    

标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.40: A small 1.35-gram mass is launched from the top of a cliff a-zpxqz6t +s*g(gn z l)t an angle ofgs *z )+- nz6tpxqgl(z $15.9^{\circ}$ above the horizontal. When the mass reaches the ground 4.33 seconds later, its velocity is directed at $34.4^{\circ}$ below the horizontal. What is the speed of the mass when it reaches the ground? (ignore air resistance)


参考答案:    

  • :
  • 总分:23分 及格:13.8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 23 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|手机版首页|使用帮助|题库网 (https://tiku.one)

    GMT+8, 2025-7-16 05:08 , Processed in 0.212540 second(s), 67 queries , Redis On.