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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 dokn,)b4: s rjkt which of the 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 advantagemftw6l htn3ijx0-six*6fz e /l8j;+ i for the pulley system shown to the ;nf i0ht/m etl3i sf6 j8z*xx-il+jw6right?

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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 pullort0b1g7 -lua8fqirhw l7+8 b ey shown, a 75N force is required to slide a box with mass M=10 kg up the incline at a constant speed. What 7 b-1f8bh 7lr0q8 r+guitwoal 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 incline( ihi80a2 hcipd plane shown, a force of 150 N applied parallel to the incline’s surface is needed to pull the object of mass M=10 kg aloh i2ph(0 ici8ang 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 one of the followncn84ovlfz)) 0.spsn ing choices best represents sf8pvcon lz4 0)s. nn) the 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 object of mass 2.0 kg m:x5ej0/nstn8jj p1m koves 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 t pmj/j5e:sj nt1kn08xhe 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 (9ee nz fctg ra/ dpzu*- ryz6*.t,iu1(i:lyswith a kinetic energy of 16.0 J. A net horizontal force acd 1f* zry e9g(uca6 prit(s.e- /*nu izzl,y:tting 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).



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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 bodiea(u 3 naefp1ubm0:9p2cwytc1 s 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.0u1tab( 1eyp a29n :3wmpcucf 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 frictionless horizontal surface, two bodies make ahead-o 5 dn s2/o*nbtootfibqg,m/bra45o+ 9n collision and stick together. Body 1 has a mass of 3.5 kg and initially moves to the right with speed 7.fn2/o o/s,tdbaoqomtr +54*gbibn9 5 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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