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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 folloo xws0l k2g vh5h414lzwing:


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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 mecyw*3r/izeegzcbou(;9 l w 3m d,(ghb1hanical advantage for the pulley system shown to the ri b/ w9( ueey;mdhi13( ggw,3rblz*czo ght?

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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 m 5qpn-p 6cv/stachine comprised of the inclined plane and pulley shown, a cs- qptn6v/ p5 75N force 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 for+- fu unbiekqszmz* kp0l)+:*ce 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 incline’s surface at a constant speed. What is the actual mechanml)b++k uk* *0zpq e fnusiz-:ical 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 3hd(b ) cxqb-e7+ tesvhdfao6p47z7 l best represents the value of the incline az vfpd4b)lehhxo-q (+e7 t6b3cds77’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 iw(z0d wagmn* 8et gbd4+ld8. 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 t8d g(40dnz w*bideg+l m8wt.a he 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 objec+qp2 pvm, 3i8qg p7xoct of mass 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 toop cm q8i+27,v3qxpgp 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 bodies mac-jhe4s8fm 1ucd7ln42c17 nprn d ,gw ke 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 arfcnc4,ep 41 j cw71 usd28hn7l-mndgt 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 h,5sr / 0t9p, l x jqo0ye/xo57dqkbeqeorizontal 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 2 from Body 1 du0ex5rd,s,/xo/0epqy e5 q9 bk to7j qlring the collision is shown.
How much kinetic energy was transformed to other kinds of energy from the collision?


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