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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 the fo6q:;pvrp)kl s llowing:


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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 for the pulley system shown to the4 ive 0kd0(ofd nxvj va;x6t64 rka6 4jnd4 06e0dxit ;xv (vofvight?

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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 yby l qjr )tqb59.p8s6inclined plane and pulley shown, a 75N force is required to slide a box with mass M=10 kg up the incline at a cy5 .bjrp9ys6)tq8l bqonstant 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 force of 150 N applied parallel0rpny.qabxc4 4a ,9o8bwtgq3 to the inclin4yqr,b8x ag3awc.4 p0 nb tq9oe’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 plane shown, which one of the fol.c a5j(t1gu9p- g nzjxlowing choices best represents the value of (1tnjp9 .z-u5gag xcjthe 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 moves along the x- axis with af tp:7).0fp1lfqagcrp (y( el velocity of +4.0 m/s. A net horizontal force acting along the x-axis is applied to the fyf(f :0(tq)lra. p 7pep1g lcobject 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 obj,q:ouzyg 2 sc:q 7qn )4kr0fomect of mass 2.0 kg moves along the +x- axis with a kinetic energy of 16.0 J. A net horizontal force acting along th)qr047,2oy qc:gufk: zmqosne 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 q mcnc6y9s-u: 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 Body 1 during the collision is s 6cmqn:suc 9y-hown.
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, tw.(i;svyry6oz yr h; *eo 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.y6ir;oz y; v(esy*rh 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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