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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 foq0sy rnuu-(h4uh(6qjd0 2lga llowing:


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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 the pulleylohd,0:hivhu 9o g.-a system shown to the righ,o u-09o.dh ihh:gval t?

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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 of the inclined plane and pulley sk0kgrv en4t:90 ;bt o6 gc. eb5rfrr/ehown, a 75N force is required to slide a box with mass M=10 kg up the incline at a constant speed. Whatft0;b 9evekrr0r. /tor5 b:g6ken 4gc 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 pd- x ij5 apu;l2k)c.yslane shown, a force of 150 N applied parallel to the incline’s surface is nea-;py)2kljcis dx5u . eded 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 actual 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 on0u70mf l6,)pfjvmq44oqqo n ge of the following choices best represents the value l q04jo7o)nq,6mu0 ffqvgp4mof the incline’s ideal mechanical 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 of mass 2.0 kg moves along the x- axis with2-nnjg asz:b a /os/j2 a velocity of +4.0 m/s. A net horizontal force acting along the x-axis is applied to the object with the force-time profile shown. ja/bn2-s:z2ojg as n/ 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 mass 2.0 kg moves along the +x- axis with+2jbix,)0j(y1gkimeb /t q v9 s ivav( 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) i vs(gv1(jbiatxbk 2m 9j0i+q,vye/ impulse 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 horiza+euk d8xes6 g m)b058v z.a./vr bie6rmikl*ontal 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 with speed 7.0 m/s. Body 2 initially is at rest. A graph of the force exerted onto Body 2eb+e6 5iabgs mr6v08. uz. v8 mekd)xr k/ali* 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 frictionless horizontal surface, two bodies (kz -,qn8x ofg86kufn make ahead-on collision and stick together. Body 1 has a mass of 3.5 kg and initially moves to the right with speed 7.0 m/s. Body 2 initially is at rest. A graph of kn- fxuon ,8kzq8f6g(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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