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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 whuecqq.:)z 2g 5u7figrich 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 id-1iv0ve7an.79-qto j, ovz kmzpg:oleal mechanical advantage for the pulley system shown to the righl7- ikvq.gozv97e 0p a-:1toz jnom, vt?

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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 x prp7 ,9h1h-pwywdh( shown, a 75N force is required to slide a box with mass M=10 kg up the incline at a constant spywp (hdh7 hp,-91xwrpeed. 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 15q/r cntiqg ,kd.n93 *k0 N applied parallel to 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. What is the act i9r/tn*3, c.gdqk nkqual 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 the following choice;p 0+ xr)sfy5 ) gbg efhncm,3xew-l4rs best represent,ne rxsg)y)4bhpg+xf fr30 c ;emlw5-s 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 obj4n7p yv+n28ltq,e y qt tu2yy0ect of mass 2.0 kg moves along the x- axis 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-tq7ln8ty2yt qe yn,0 v+4p2uy 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 then b+f5h0putrj-y; si2 +x- axis with a kinetic energy of 16.0 J. A net horizontal force acting along the x-axis is applied to th +spubty0; fnrh5j2- ie 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 make ahead-o xg7k wtww-9 gwna3.*kkk;z1 hn collision and stick together. Body 1 has a mass of 3.5 kg and initially moves to the right with shk.xtzn3 9kk ww; 1kgga-w w*7peed 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-oo(h;p e9r:cbw n collision and stick together. Body 1 has a mass of 3.5 kg and initially moves to the right wit( :ecob h9rw;ph 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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