15．如图6所示绳子ab能承受的最大拉力为100n用它悬挂一个重50n的物体现在其中点o施加一个水平拉力f缓慢�右拉动当绳子断裂时ao Sketch Coloring Page

15．如图6所示绳子ab能承受的最大拉力为100n用它悬挂一个重50n的物体现在其中点o施加一个水平拉力f缓慢�右拉动当绳子断裂时ao Template

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tomski15．如图6所示绳子ab能承受的最大拉力为100n用它悬挂一个重50n的物体现在其中点o施加一个水平拉力f缓慢�右拉动当绳子断裂时ao coloring

15．如图6所示绳子AB能承受的最大拉力为100N用它悬挂一个重50N的物体现在其中点O施加一个水平拉力F缓慢�右拉动当绳子断裂时AO sketch template

如图所示两根等长的绳子AB和BC吊一重物静止两根绳子与水平方�夹角均为60°．现保持绳子AB与水平方�的夹角不变将绳子BC逐渐缓慢地变化 sketch template

如图甲所示杠杆AB能绕固定点O在竖直平面内转动水平地面上的配重乙通过细绳竖直拉着杠杆B端．已知AOOB=25配重乙与地面的接触面积为 sketch template

如图所示轻绳AB能承受的最大拉力为100N在它下面悬挂一重为50N的重物通过能承受最大拉力为50N的绳子分两种情况缓慢地拉起重物．第一 sketch template

一轮复习：“活结”和“死结”模型知乎 sketch template

30．如图所示用�轮组提起重G的物体绳子自由端拉力为F重 物以速度勘匀速上升不计�擦和绳重则 1�轮组的机械效率为 2 sketch template

7．如图6所示绳子OO′悬吊着质量忽略不计的杆在杆的a点挂上重物G在O右侧某点b处挂上钩码．重物G的质量及a到O的距离不变要使杆保持 sketch template

日常生活中�们有时要用同样长的两根绳子挂一个物体如图1所示如果绳子的最大拉力为F物体受到的重力为G你能否用�量的知识分析绳子受到的 sketch template

用四个�轮和两根相同的绳子组成如图所示的甲、乙两个�轮组用它们匀速提起货物在绳自由端施加竖直的拉力分别为F甲和F乙物重分别为G甲和G乙 sketch template

用一条绳子悬挂一物块物块处于静止状态这时物块所受的作用力是和它们的施力物体是 ——青夏教育精英家教�—— sketch template

高中物理：轻杆类问题等时圆模型知乎 sketch template

如图所示绳AB能承受的最大拉力为1000N杆能承受的最大压力为2000N杆可绕转轴C在竖直面内转动但其本身的重力很小可忽略不计．BD sketch template

如图所示两条悬绳OAOB结于O点O点下方挂一重物GAB两点系在水平天花板上OA绳与天花板之间的夹角为53°OB绳与天花板之间的 sketch template

如图所示中L1L2L3三根绳子能够承受的最大拉力相同现不断加大所系重物G三根绳子断折的情况是 A．L1先断B．L2先断C．L3先断 sketch template

百度教育 sketch template

如图所示用两根绳子吊起一重物使重物保持静止逐渐增大两绳子之间夹角则两绳子的拉力的合力变化情况是 A不变 B减小 C增大 D sketch template

如图所示用绳AC和BC吊起一个物体绳AC与竖直方�的夹角为60°能承受的最大拉力为100N绳BC与竖直方�的夹角为30°能承受的最大 sketch template

用两根绳子吊起一个重物如图10所示如果每根绳所能承受的最大拉力是20104Nsin37＝06sin53＝08求 1吊 sketch template

用两根绳子AC和BC吊起一重物两绳与水平方�的夹角如图所示已知G＝200N则 1重力沿AC方�的分力为 N2重力沿BC方�的 sketch template

如图所示一个物体由绕过定�轮的绳拉着分别用图中所示的三种情况拉住在这三种情况下若绳的张力分别为T1T2T3轴心对定�轮的支持力 sketch template

如图甲所示的�轮组每个�轮等重．不计绳重和�擦物体重G1从200N开始逐渐增加直到绳子被拉断．每次均匀速拉动绳子将物体提升同样的高度．图 sketch template

用细绳AC和BC吊起一重物两绳与竖直方�的夹角如图所示AC能承受的最大拉力为150NBC能承受的最大拉力为100N．1若挂一50N的 sketch template

一轮复习：阿特伍德机类型知乎 sketch template

如图甲所示的�轮组．不计绳重和�擦物体重G从400N开始逐渐增加直到绳子被拉断．每次均匀速拉动绳子将物体提升同样的高度．图乙记录了在此过程 sketch template

百度教育 sketch template

如图所示用三段轻绳子将重物悬挂在空中此时绳子OB保持水平绳子OA与竖直方�的夹角为30°1画出节点O的受力示意图2如果绳子OA sketch template

15．如图所示用两根绳子OA及OB把一重物悬挂起来OB＞OA下列说法中正确的是 A．绳OA承担的力大 B．绳OA承担的力小 sketch template

如图6所示质量分布均匀的细杆水平放置支座A在杆重心的右侧杆的右端被位于其上面的支座B顶住现在杆的左端C处施加一个�下的作用力则 A sketch template

如图所示四个�轮组如果�轮的重力和一切�擦及丙组的板重不计重物G的重力为600N．要将重物匀速提起四种情况下拉力F分别为F甲= F乙 sketch template

15．如图所示重为8N的球B静止在与水平面成37°角的光�斜面上并通过定�轮与重4N的物体A相连．光�挡板与水平面垂直绳倾斜部分与斜面 sketch template

如图所示AB两点在同一水平面上轻绳OAOB与水平方�的夹角分别为37°和53°若轻绳OA和OB所能承受的最大拉力分别为120N和 sketch template

用两根绳子吊起一个重物如图所示如果AOBO绳所能承受的最大拉力均是20104Nsin37º＝06sin53º＝08则1 sketch template

如图所示用绳ABBC吊一重物PBA绳与水平方�夹角为60°BC绳与水平方�夹角为30°绳AB能承受的最大拉力为300牛绳BC能承受 sketch template

24．如图5所示物体静止在斜面上用力的示意图表示出物体对斜面的压力 25．如图6所示物体在水平面上�右运动水平面对它的�擦力大小为 sketch template

15．如图6所示两个等大反�的水平力F分别作用在物体A和B上AB两物体均处于静止状态若各接触面与水平地面平行则AB两物体各受几个 sketch template

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