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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 9(iw6nt8m68somn7 i 5e ivs;b kij1qf following:


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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 6kxv2+ fa7cmcthe pulley system shown to the rightc6xvf27ka c m+?

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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 -y:p b-hh9,op ;vtr lx4x,uxva9t2 sythe inclined plane and pulley shown, a 75N force is required to slide a box with mass M=10 kg up the incline at a constant speed. What is the ef l,t ph9x;4 -pux:vhby-raxvyto, 92sficiency 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 forz n9 6e-ctrp, 0vh0lfsce of 150 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 incszt0n6-r c9,0 vhfpe lline’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 one of the foz4 m*;,4bodhi-ov msbwsq0;3hbmn 7ullowing choices best represents the ;,sbh h; doisvm b b-mmo4 *zqu374nw0 value of 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 obx1w azc nc3vy0)nq3h4 ject of mass 2.0 kg moves along the x- axis with a velocity of +4.0 m/s. A net horizontal force acting along the x-axis is applied to the object with thev3xcnh4)1wya 03z cnq 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 mass 2.0 kg moves along the +x- axis with a kdthh9 0:n f1iginetic 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 impulse delivered by the force (units in kg m/s).91 igdt: nhh0f



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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-onxaj(f+ol 5/z o 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 xaoo + (flj5/zthe 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 frictionless horizontal surface, two bodies make ahead-f ))(fp gk7souon 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 2 from Body 1 during the collision is shus( p7)ofgk )fown.
How much kinetic energy was transformed to other kinds of energy from the collision?


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