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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 c vadog-z- 12ythe 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 ci)/ fjy d9()sey).vj,2c v4tllltvs mechanical advantage for the pulley system shown to the rig(dyi c4jle)s2v/y vjsflc,) .tv9lt)ht?

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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 co b3n fapbdhf)12ue*2 umprised of 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 efficienuf2u *p2b3 fbehda n1)cy 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 dt6cyxpq3xav1c*qq7*r( fb 6applied parallel to the incline’s surface is needed vf xqt q* dc13*pr6(b7 axy6qcto 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, whi/, t3r4e:si,b ku,ny2 s eu*f ekgg,dnch one of the following choices best represents the value of the incline’s ideal mechanicas/ ubyee:kni4, g*,e,,2r gt3udkn sfl 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 amad7k3)4 lff0kk0 pti long the x- axis with a velocity of +4.0 m/s. A net horizontal force acting along the x-axis is7k ifl3kd)kamf0 p4 t0 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 alokf v2i9di pmaw5c;q (0ng 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. 5 c9i av0;kdp(mwi2qfWhat 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 surfm/(6s tvwxo(oace, 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 initi6owsxv(/m ( otally 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 surfnv1em8b3 hocvr2tho s/d (7 )wace, 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 initially is at rest. A graph of the force exer eb7ht 1hvroc/ (wn3vm8o s)d2ted 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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