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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 machi0sd3oh1vdt3fi25 zplne 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 ideay9dju -;r1g(ixsx y3 v+b 2bbyl mechanical advantage for the pulley system shown to the u(+jxs r92i-vb13ybx gyb y;d right?

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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 wpziwut7 l1 -wr8 v6f2 and pulley shown, a 75ltw-rpfiv 1w zwu826 7N 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 force of 150 N o*k0gkq4 8 paywh1 2y1q.r jmkapplied parallel to the incline’s surface is needed to pull the object of mass M=10 kg along the entire* agk y12wkkyom18hqr4q p.j0 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 choicerj7th +.8xlv(u)2, gbm qxpujs best represents the value of the incl(+2xgum78vhjpx.b,tru lq) j ine’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 obc.h --/ ypb(hhm1r;8b/ bys1weq vjfk ject of mass 2.0 kg moves along the x- axis with a velocity of +4.0 m/ (fsyyp r;wevh-1-.bh kc/b1jhb/8mq 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 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 j)xl: 2pbja8s6bk )qfc, zb:bmass 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 app8l)xsab, jqcjbpbbz: 6 )kf: 2lied 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 horiz;fm3g .7oj qt.me*q jsontal surface, two bodies make ahead-on collision and stick together. Body 1 has a mass of 3.5 kg and initially segm.;f.*jjmo 3qqt7 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 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 surfacsmrcr,6qqo8ow( a54e( i rqc+e, 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.oawqmc+(r,r6c8o qr q5s4(e i 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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