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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 NOT5bh:ovq7t zd 7moai bm5q((s5 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 mechanical advantage for the pulley syst/apag+b0 2t, :ahew7j5xwq( kmz ;mg yem shown to the rigb wyaeq kt +(/;g,7 2ajh0:5wgma mxzpht?

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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 inclinh0,9 vel0md9tz9 d:qxltm )zged 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 efficiency of this compound machine? zx0v hmtmged 99l ) d9:0,tlzq


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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 plancasv8:9wa qa( e shown, a force of 150 N applied parallel to the incline’s surface is needed to pull the object of mass Ms9qwa8:v a(a c=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 ttn* k (4kc6*j(ythladhe following choices best represykk (jcn*(h6t a dt4l*ents the value of the 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- caub,mn 0w37xxw *7h8kr n*pl4yj /ihaxis 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 profile shown. What is the tot84r*0lhuaw3 ncjy xpxb i7 k/*7wn ,mhal 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 +mf .(ehry+uxl-kh8 0 hipim 6*:cz;zz ih: fh2.0 kg moves along the +x- axis with a kinetic energy of 16.0 J. A net horizontal force acting along the x-axis is a:hmxi-czzz l +p6ih hih:yhu fe+r 8k(f;m0*.pplied 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 8nlk)oerjm qq,mf8 o1fra7 t-8-x.a whorizontal surface, two bodies make ahead-on collision and stick together.et qqo a8mx8rfn-f17w).ra-o 8k l j,m 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 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 ahead-31q 2nb5mgdz pon 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 zqm3db2ng 1 5pforce 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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