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习题练习:Mechanical Advantage



 作者: admin发布日期: 2024-08-13 15:22   总分: 9分  得分: _____________

答题人: 匿名未登录  开始时间: 24年08月07日 15:59  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  
  99.10: A simple machine can NOT do which of the follo)b vtl-nmw/*i g* f9qi*6ptym wing:


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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.13: What is the ideal mechanical advantage for dgsuf7rs1+ sk5v:wex; :vfy* the pulley system shown to the right? fdxgfve v ;ss5ys7r*1 wk::u+

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.39: For the compound machine comprised tm m ;9vvoh7i 7f+ouk;of the inclined plane and pulley shown, a 75N force ioif7 hu9vmtm v;o;7k+s required to slide a box with mass M=10 kg up the incline at a constant speed. What is the efficiency of this compound machine?


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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  11.36: For the inclined plane shown, a force of 1t1i7 xft3lkfnt(a aa- x5 jy/.50 N applied parallel to the incline’s surface is needed to pull the object of mass M=10 kg along the entire length of the incline’s surface at a constant speed. What is the actuaa75y la3j-/ tf.i1a f(x ntkxtl mechanical advantage (AMA) for this scenario?


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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.13: For the inclined plane shown, which one of the following choices bxdcf/i. 0h4vp est represents the value of the incline’s ideal m4.p hfi0c vx/dechanical advantage?


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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.45: A point-like object ac/vlp*ybo y8)mw-wg3+) wyd of mass 2.0 kg moves along the x- axis with a velocity of +4.0 m/s. A net horizontal force acting aldw*c8wow y l)vga3/-ymy)b+p ong the x-axis is applied to the object with the force-time profile shown. What is the total work that was done by the force?


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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.17: A point-like object of m0nich/1wz 7p2yn(j cuass 2.0 kg moves along the +x- axis with a kinetic energy of 16.0 J. A net horizontal force acting along the x-axis is applied to the object with the force- position profile shown. What is the total imhi nn 0uy1jc( /pwzc27pulse delivered by the force (units in kg m/s).



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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.27: On a frictionless horizontal surface, two bodies make ahead-on collis m g5.5p82z;nwt8 jhi j3qiahzion and stick together. Body 1 has a mass of 3.5 kg p8h j .5qzia2tgwj;inz3 5 m8hand initially moves to the right with speed 7.0 m/s. Body 2 initially is at rest. A graph of the force exerted onto Body 2 from Body 1 during the collision is shown.
What is the mass of Body 2?


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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.28: On a frictionles)er0qppng 9she:c/ vi8r1 2tes horizontal surface, two bodies make ahead-on collision and stick together. Body 1 has a mass of 3.5 kg and initially moves to the right withqcgherp:e29) sv/ 0ptn1r8 ie speed 7.0 m/s. Body 2 initially is at rest. A graph of the force exerted onto Body 2 from Body 1 during the collision is shown.
How much kinetic energy was transformed to other kinds of energy from the collision?


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