如图所示用200n的拉力拉着物体a在水平面上匀速前进物体b以01ms的速度匀速前进．若a与�轮相连的绳子c受的拉力大小是140n不计 Sketch Coloring Page

如图所示用200n的拉力拉着物体a在水平面上匀速前进物体b以01ms的速度匀速前进．若a与�轮相连的绳子c受的拉力大小是140n不计 Template

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tomski如图所示用200n的拉力拉着物体a在水平面上匀速前进物体b以01ms的速度匀速前进．若a与�轮相连的绳子c受的拉力大小是140n不计 coloring

如图1所示小雨用200N的拉力利用�轮组在空中匀速提升密度为3×103kg/m3的物体A此时机械效率为90%不计绳重�擦和水的阻力求 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

如图所示三条轻绳共同连结于O点AB固定在天花板上另一条绳下端挂一重200N的物块处于静止状态．绳的方�如图所示．求OAOB两绳的 sketch template

用如图甲所示的�轮组提升物体M，已知物体M所受的重力为550N，卷扬机加在绳子自由端的拉力F将物体M在20s内沿竖直方�匀速提升10m，拉力F sketch template

1如图1所示工人用200N的沿斜面�上的推力将一个物重为300N的木箱推上斜面．请作出木箱受到的重力和推力的图示．2如图2所示一 sketch template

如图所示用F为40 N的拉力通过�轮组拉着重为300 N的物体A在水平面上以04 M/s的速度�左做匀速直线运动物体受到的�擦力是物重 sketch template

24．如图7所示物体挂在弹簧测力计下用力的示意图表示出物体所受拉力的三要素——青夏教育精英家教�—— sketch template

14．如图8所示用恒力F通过光�的定�轮将静止于水平面上的物体从位置A拉到位置B物体可视为质点定�轮距水平面高为h物体在位置AB时 sketch template

如图所示用F=50N的水平拉力通过一个动�轮使重为200N的物体A水平�右匀速移动了3m在这个过程中 A．拉力F做了150J的功B sketch template

如图所示用F=6N的水平�右的拉力匀速拉动物块A时物块B静止不动此时弹簧测力计示数为4N则物块B所受�擦力大小及方�为 A sketch template

如图所示工人用200N的沿斜面�上的拉力将一个物重为300N的木箱拉上斜面．请作出木箱受到的重力和拉力以及对斜面的压力的示意图．题目和 sketch template

如图所示用200N的拉力拉着物体A在水平面上匀速�左运动物体A与�轮相连的绳子所受的拉力为A所受�擦力的4倍若不计�轮重绳重及�轮装置 sketch template

力的三角形法则的应用知乎 sketch template

如图所示用200N的拉力拉着物体A在水平面上匀速前进物体B以01m/s的速度匀速前进．若A与�轮相连的绳子C受的拉力大小是140N不计 sketch template

如图所示在与水平地面成θ角的拉力F作用下质量为m的物块沿地面�右做匀速直线运动 1试求物体与地面间的�动�擦因数 2若把此力F sketch template

15．如图所示用F=6N的水平�右的拉力匀速拉动物块A时物块B静止不动此时弹簧测力计的示数为4N则物块B所受�擦力的大小为 N�擦 sketch template

如图所示用绳子系住小球靠在墙上物体重16N绳受到20N拉力试画出物体受到重力和拉力的示意图．题目和参考答案——青夏教育精英家教�—— sketch template

16．如图所示左边是探究某根弹簧的伸长量x与所受拉力F之间关系的实验图根据实验数据得到右边图线 �写出图线代表的函数 X用m做单位 sketch template

6．如图2所示水平地面上的物体A在斜�上的拉力F作用下�右作匀速直线运动则 A．物体A可能不受地面支持力的作用 B．物体A可能受到三个 sketch template

如图a所示物体原来静止在水平面上用一水平力F拉物体在F从0开始逐渐增大的过程中物体先静止后又做变加速运动其加速度a随外力F变化的 sketch template

如图所示的物体A静止在斜面上请画出物体A所受重力的示意图画出图乙中细线对木块A拉力的示意图．题目和参考答案——青夏教育精英家教�—— sketch template

如图所示的�轮组拉动物体A沿水平地面匀速前进已知物体A的重力为500N拉力大小为50N则物体与地面间的�擦力f=150150N若物体 sketch template

如图所示物体在一个沿斜面的拉力F的作用下以一定的初速度沿倾角为30°的斜面�上做匀减速运动加速度的大小为a=3m/s2物体在沿斜面�上 sketch template

如图所示用F=200牛的拉力拉着物体A以3米/秒的速度在水平地面上匀速前进则物体B的运动速度为66米/秒．若物体B与水平地面的�擦力大小为 sketch template

如图所示用200N的拉力拉着物体A在水平面上匀速前进物体B以01m/s的速度匀速前进．若A与�轮相连的绳子C受的拉力大小是140N不计 sketch template

如图所示用一动�轮拉一物体A以05m/s的速度 在水平面上作匀速直线运动物体A重为20N受到的� 擦阻力是物重的02倍水平拉力为2 sketch template

如图所示某人用�轮组匀逮提升重120N的物体人的拉力为50N在2s内绳的自由端移动了6米1物体上升的高度2人所做的额外功是 sketch template

如图所示重为80N的物体在大小为20N方�水平�右的拉力F1作用下在水平面上以2m/s速度做匀速直线运动．当撤去拉力F1物体静止后 sketch template

如图所示重500N的物体在100N的水平拉力作用下沿水平地面以05m/s的速度匀速运动10s．在这个过程中拉力做功的功率是 sketch template

如图所示用恒力F拉一个质量为m 的物体由静止开始在水平地面沿直线运动的位移为s力F与物体运动方�的夹角为α已知物体与地面的动�擦因数为 sketch template

如图所示用水平拉力F拉上表面粗糙程度各处相同的物体A使其在水平地面上匀速运动当物体B静止不动时与水平绳相连的弹簧测力计的示数不变．关于 sketch template

如图所示用F为30N的拉力通过�轮组拉着重为300N的物体在水平面上以05m/s的速度�左做匀速直线运动．则物体受到的�擦力大小为 sketch template

如图所示用平行斜面�下的拉力F将一个物体沿斜面往下拉动拉力的大小等于�擦力则 A．物体做匀速运动 B．合力对物体所做的功等于零 C sketch template

如图所示重为80N的物体在大小为20N方�水平�右的拉力F1作用下在水平面上以2m/s速度做匀速直线运动．当撤去拉力F1物体静止后 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

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