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 Coloring Page

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 Template

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tomski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 coloring

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

如图所示，用三根轻绳将质量为m的物块悬挂在空中。已知ac和bc与竖直方�的夹角分别为30°和60°，重力加速度为g。请选择合适的研究对象，画出 sketch template

一轮复习：动态平衡问题解题技巧知乎 sketch template

题目如图所示质量均可忽略的轻绳与轻杆承受弹力的最大值一定杆的A端用铰链固定光�轻小�轮在A点正上方B端吊一重物G现将绳的一端拴在 sketch template

4．如图所示用光�轻质动�轮悬挂重力为G的物体轻绳总长L绳能承受的最大拉力是2G．现将轻绳一端固定另一端缓慢�右移动距离d而不使绳拉断 sketch template

18． 如图期末 9所示的支架上有不计重力的细绳AB细绳与竖直墙壁交角为60°轻杆BC与竖直墙壁用铰链连接夹角为30°若细绳能承受的 sketch template

如图所示A、B两小球分别用轻质细绳L1和轻弹簧系在天花板上A、B两小球之间用一轻质细绳L2连接细绳L1、弹簧与竖直方�的夹角均为θ细绳 sketch template

4．如图所示用光�轻质动�轮悬挂重力为G的物体轻绳总长L绳能承受的最大拉力是2G．现将轻绳一端固定另一端缓慢�右移动距离d而不使绳拉断 sketch template

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

一轮复习：阿特伍德机类型知乎 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

一轮复习：“活结”和“死结”模型知乎 sketch template

如图所示质量分别为2m和m的AB两物体用不可伸长的轻绳绕过轻质定�轮相连开始两物体处于同一高度绳处于绷紧状态且足够长不计一切阻力 sketch template

如图所示轻绳OAOBOC结于O点AB端挂在水平天花板下OA=OB=10cmC端挂一重为10N的物体．1请画出结点O的受力示意 sketch template

如图所示用轻绳AC和BC悬挂一重物绳与水平天花板夹角分别为60°和30°若物体重100N则绳AC的拉力为50$sqrt{3}$N sketch template

如图所示轻绳AC与天花板夹角α=30°轻绳BC与天花板夹角β=60°设ACBC绳能承受的最大拉力均不能超过100NCD绳强度足够大 sketch template

如图所示质量为m的小球被水平绳AO和与竖直方�成θ角的轻弹簧系着处于静止状态现用火将绳AO烧断在绳AO烧断的瞬间下列说法正确的是 sketch template

如图所示是由三个相同的�轮组装成提升重物的装置固定点O所能承受的最大拉力为2300N．在不计绳重和轴的�擦情况下假设绳子足够结实提起 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

如图所示，a、b、c为三个物块，M、N为两个轻质弹簧，R为跨过光�定�轮的轻绳，它们连接如图并处于静止状态．下列判断中，正确的是（）百度教育 sketch template

如图所示物体的质量为2kg两根轻绳AB和AC的一端连接于竖直墙上另一端系于物体上在物体上另施加一个方�与水平线成θ＝60°的拉力F若 sketch template

如图所示轻绳AC与天花板夹角α=30°轻绳BC与天花板夹角β=60°设ACBC绳能承受的最大拉力均不能超过100NCD绳强度足够大 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如图所示如果AOBO绳所能承受的最大拉力均是20104Nsin37º＝06sin53º＝08则1 sketch template

如图所示用一动�轮把重为100N的物体匀速提到4m高处作用在绳末端的拉力为75N则�轮组的机械效率为 A．133%B．75%C．66 sketch template

如图所示 BC绳 AC绳与竖直方�的夹角分别为60°和30°重物的重力为G=20N 求 1 AC绳所受的拉力大小 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一轻绳上端固定下端系一个质量为m的小球．现对小球施加一个F=mg的水平拉力使小球偏离竖直位置并保持静止则轻绳与竖直方�的夹角为 sketch template

如图所示甲乙两个�轮组通过细绳悬挂在天花板上用�轮组匀速提升重为600N的物体时悬挂甲乙两�轮组的细绳所受的拉力分别为F甲F乙 sketch template

用如图所示�轮组匀速提升重为200N的物体人对绳的拉力为125N不计绳重和�擦�轮组的机械效率为 ．如果人的体重为600N拉动过程中绳 sketch template

如图所示质量为m1的物体甲通过三段轻绳悬挂三段轻绳的结点为O．轻绳OB水平且B端与放置在水平面上的质量为m2的物体乙相连轻绳OA与竖直 sketch template

如图所示一轻绳跨过光�定�轮两端分别系一个质量为m1m2的物块．m1放在地面上m2离水平地面有一定高度．当m2的质量�生改变时m1的 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

如图所示绳OC与竖直方�30°角O为质量不计的�轮已知物B重1000N物A重400N物AB均静止．求1OC绳的拉力为多大 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

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