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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 followindf2v. 6 ahp;, wvkud6 )p7kdfcg:


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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 me*m tip )q:svw or6ht90(5ck;rq7blfhchanical advantage for the pulley system shown to ther h5tk pq9 wovqh 6 7b*fm:0;sc(lirt) 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 ot3y8m(wukm e(em8i1 1juf h 2cf the 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 efficie8 2j(1wcek3 (ume8fm t1u myhincy 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 applied parallel to the inel:8 5y vyh6jvvrj.h eknuo;r a13-3 vcline’s s a53 yher jev.o3n61uvh;v: krv-jl8yurface 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 fgwv -uui s9+bzzl t8q uif18*:m4. zdthe following choices best represents the value of the incline’sivulz4fud uz .*g 8zqf-i 1+t8m:bw9s 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 moves along g n-mo o9;mhz21lh+ihthe 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 the force-time og;ohhm2+m h9 -z iln1profile 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 movei8 :i2po f)fi.ztqzqp 0w -)cts along the +x- axis with a kinetic energy of 16.:0-t .o2wp)iqz)zcpftq i if80 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).



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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-on pvx fi/8z:awhv8b4+1e:cn nvcollision and stick together. Body 1 has a mass of 3.5 kg and initially moves to the right with spee+e48w izxf81/p c:bnvnhv: vad 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 surface, two bodies make aheaa37viv a6r (bgd-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 g7 vi(rbav3a62 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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