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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 cwm 4/,7iz8wftuz2hr:fa nn5 can NOT do 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 advantpz)v9q jkwl,:; 5ybekage for the pulley system shown to the riy k p)5z :qwb9,vje;lkght?

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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 incob gmun18a-aov/7 c f4lined plane and pulley shown, a 75N g bc4 m7fva/uo1o- a8nforce is 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 15g9ovkmtdalx 5 o zmn;e:*0f-a x82 gu20 N applied parallel to the inclingk* f muelaxomt;ngo590zv- dax 22 :8e’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 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 following choices best1, 0yy q*jehznv03npa-ppc8h represents the value of the incline’s idehz- 8en0 v jc1,yp03qp*nhp ayal 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 with a veloo 07vj2)evh8, z;mdh ixcl-ohv:y z+fcity 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. What is the total work that was done bymv)+zz2hx d-v;07l y,ijch oehv8of: 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 k k oko (p64uht9ce)y2/f:u cc2.0 kg moves along the +x- axis with a kinetic energy of 16.0 J. A net horizok k/6fkyc)teuc c24 pou(9o:hntal 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).



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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, iy w-z4d pq0c9bncb *)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 2 from Bo4)z *c bb0cp9ndiw -yqdy 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 surfawi)go6 -dqi+sxtp0g /8e9pjg ce, two bodies make ahead-on collision and stick together. Body 1 has a mass of 3.5 kg and initially moves to the p +g6q0ipxwi/g) tdso89g j-eright 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.
How much kinetic energy was transformed to other kinds of energy from the collision?


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