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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 machin, 4l 4ve4lo7rgteq:ue-db t(ee 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 mechanical3 x eh/jt6goni zj9i:. advantage for the pulley system shown to the righ3jg . h :ij/t9xoine6zt?

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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 pulley sh)qby w 42cu6)af:/2gs q+hn3/ab5ma bcooxrq own, 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 omq4uocr sx aag :c qynbbqw+2fb52a6/3o))/hf 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 appl-sgseg 4u/g m,ied parallel to the incline’s surface is needed to pull the object of mass M=10 kg along the entire len/mg us, se-gg4gth 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 shoq0 0by)v697yf bl4htqv bwtmq-0+fvawn, which one of the following choices best represevvl yaq+fb0f0-6bqv w0 b9y )m74hqttnts 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 mqar2gd2.(j ycjs :7zcoves along the x- axis with a velocity of +4.0 m/s. A net horizontal force acting along the x-axis is applied to 2y j csrj72cazd :g.q(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- xbfm / *dedwve 2uj*wg38s+o8axis 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 tota*28vf dbeej + uwx 3m*d8sgo/wl 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 . )sdyzkn2h4h 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 i4h hk nd.sy)z2s 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 surfacin5 hu+9tcq v,e, 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 exerted onto Body 2 from tuh+9c q5v,niBody 1 during the collision is shown.
How much kinetic energy was transformed to other kinds of energy from the collision?


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