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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 followecb2 ;bjp8/yw sc+j)ging:


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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 ;sbk,ewx pp.h k+80qpadvantage for the pulley system shown to the rpwpke,+x ; p0qk8.b shight?

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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 pnm6 xr,4hva 8v7uh6s inclined plane and pulley shown, a 75N force is required to slide a box wi4 xsp7,r m6h8av6hnu vth 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 applied parallel to thiqqs .-.hjb ylwhl18 k8hbc;-kbn(h; e incline’s surface is needed to pull the object of mass M=10 kg along the entire llhqwiq.hb.s; ; (ny-kbk l h-1 88bcjhength 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, whicvn3u6 z h6n0x f-7pir :vgzd-bm:x:m kh one of the following choices best represents the value of tr: 7u n ndzxxip6vm3-vk-g6f b0:hz :mhe incline’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 of mass 2.0 kg moves along the x- axis with a7.h ()se c vcs0qmkoa/ velocity of +4.0 cs 0ao.kmh/e)cs7(qv 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 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)a6zhux 9 cb0r* gh wqd13/szdclz3m* .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 to the object with the force- position profile shown. What is the total impulse delivered by thz 0*gs zcdclw3rhh1bmdx*/au69 q z)3e 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-on13s -wjx0ytm*9bvi hv 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 ony -whvtj 3v0 x1bsm*i9to 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 bo;s hs6ckykb3f .op44v dies 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 Bok 3 pvsc6ok4ysbh4f.;dy 1 during the collision is shown.
How much kinetic energy was transformed to other kinds of energy from the collision?


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