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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 he r5 pmwyae,6;4w)ahb;fwomi/. a ls v;1rf;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 advantlb*4e 80z dt/ idqxx+eage for the pulley system shown to the rigbxldt 0xz48q+*ei e/dht?

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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 tsyqp9wd .8 igg-)p8e nhe 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 thni-pg .dge8q9ys8)w pe 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 tah1n6bm) uus( 4c5gnyo the incline’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. un(yab4s5g)nmu6hc1 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 pj9k kmgr si5*o-1ow* )bw8d* ft2n,df v)kesjlane shown, which one of the following choices best represents the value of the incline’s ideal mnkvf*f r) owtsdsgej5*b-jiw,mk)9o* 18d2 k echanical 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 xeo;b xs)4rc/av (f02gy/m6msx h b5 eb- axis with a velocity of +4.0 m/s. A net horizontal force acting along the6)s( egrmv2 cs;fb4hxb/0xb a mey5o/ 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 +x2 7lceq9s4 +xu laszs5- axis with a kinetic energy of 16.0 J. A net horizontal force acting a9z+ s2es4ull7axq cs5 long 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 makf s 81ftvwvfn nb((v.hh .-,fxe 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 gvfvff,(n8 (wvth1s -bfx..hn raph 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-on collicude6 k. 2dh9h -fea+rsion and stick together. Body 1 has a mas6fcu2. aekh d-e9+ rhds 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.
How much kinetic energy was transformed to other kinds of energy from the collision?


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