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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 d 6sz,+wkd lvxg/i+ bh7o 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 +(lt0e 15t7yirzfb qcm g/uc4advantage for the pulley system shown to the rig1ec7zr qy50ml+c f4tub(t i/ght?

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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 compounf ur p10twx7v3d machine comprised 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 efficiency of thi7wr10 3pvut fxs 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 forc9g*oj/fa , dinsmj:m6 d 93bpce of 150 N applied parallel to the incline’s surface is needed to pull the object of mass M=10 kg along the entire lenmd sidm *6o3:c n9,jf/pgbja9gth 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 the followingp:y ,u,wv 87/ghvevwv choices best repgvwyp :,/uw7 vvh8v,eresents 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 movesc jw.6)hrpe zir;)8i2wx-nl l along the x- axis with a velocity of +4.0 m/s. A w.li lzxce)j hp82r)i;- wr n6net horizontal force acting along the 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 alon;;y .pwb a6 dm:qlexj2g 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. What is the total impulse delivered by the force (units in kg m/s). dxp qa 2eybjwlm.;:6;



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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-on colli+e cwhb9(f :*jrf.nju sion 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 fror(9nju:hf*w+j.eb fc m 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 bockk*h -u0p2 q z6q(dwudies make ahead-on collision and stick together. Body 1 has a mass of 3.5 kg and initially moves to th6p0(-k2u*k zqc uhdqwe 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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