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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 db9q1 iz2+baz0()m bp5jz dobb -l8gy 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 mecha5c9rvg90. fyzdz6*mj3bm p r4e9rn mcnical advantage for the pulley system shown to the r mrmmrr yczz69ec5pg0v3f jd 49*n 9b.ight?

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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 pseuc -4dcaml*wltor;q4 )+ a4 ulley 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 efficie ae4wqc;m *ct4l4o) s+l-daruncy 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 kaj 6.a/8gpnzN applied parallel to the inclinaa. /jzng8kp6 e’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 follo 4n86bir ts9rkwing choices best represents the value of the incline’s ideal mechanical advantager8k9t rbns i64?


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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 wi j4 pafxv96q. ,f3g(pq tetr3xth a velocity of +4.0 m/s9 x p(qtxvt.g3q6 jafr4p ,3ef. 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 mass 2.0 kg moves along the +x- axis wit:5c.qjx hv1 a tlj+(rbh a kinetic energy of 16.0 J. A 5v(+jhxlbt a :qrj1c.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 collisiyph,xr ,s4) pp7j:mmv3h5 wklon 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 during the collision hwvj,54 h pyxps 3, kmlm:)pr7is 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 horizon6555q3jtb de vupwh*jtal 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 init3hjt *p5ud5 6w5jqv ebially 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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