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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 tho*8lma;a0)qm1xqylyu 7 4m )y9pwm sv e 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 advantage fd zqhp 2mz 61hm(nl)4lka0 tg(or the pulley system shown to the righ6lzghdz)p th2anl (q(k0m1m4t?

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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 machin*9v-il 7i:fcdca *9r1anpzfmguff. 5e 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 connm*p9f.7a*fi afcd :rg v5f9- uczl1istant speed. 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 f0d4or0.h g5ah 6b* nxicfox6dorce of 150 N applied parallel to the in46gbhoia50cdxd0n*r .o6h xfcline’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 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 pltkb m25u ycgwh-nn(dj.*v/*aane shown, which one of the following choices best represents the value of the 2cw.hkmnjudb*v - n g/(ay*5 tincline’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 kq)ta e.w7hg:p4vv8 xd g moves along the x- axis with a velocity of +4.0 m/s. A net horizontal force acting along the x.ta4ghx)pd7 v qe:8 wv-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 +x- axis with a kigb59ckxi ;m- rnetic energy of 16.0 J. A net horizontal force actin xrbcim9;k-5 gg 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).



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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 frictiodq-( z; n3e 3tlau0pqwk1+bgi nless horizontal surface, 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 grapw1bi ;3l u-pqet3q0g (ka nd+zh 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 m 0ejiihyw 5,.f*.a4,etmm lwhorizontal surface, 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 frommi0t*e.. hwywea,lm,i f m j45 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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